Rotabroach
    
        
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             With Rotabroach Annular Cutters you can multiply your speed of cut by more than 2 to 3 times from what you expect with traditional twist drills and other conventional tools. And you get longer tool life, a more accurate hole, a better finish, with no burrs. For use with Hougen Portable Magnetic Drills on materials up to 275 BHN. Made of hardened, high speed tool steel and precision ground, cutters feature a 3/4" diameter double-flatted shank for use on all Hougen Mag Drill Models except HMD111, HMD115, HMD151, & HMD150 (Models HMD915 and HMD916 require adapter #02386) and are available in 1, 2, and 3" D.O.C. Plus, modified end tooth geometry for stacked plate drilling is available. Rotabroach Cutters are resharpenable using the Model 10950 Sharpening Machine.  
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                        | Cutter Dia. | 
                        Decimal 
                        Equiv. | 
                        Part Number / Depth | 
                     
                    
                        | 25mm | 
                        50mm | 
                        76mm | 
                     
                    
                        | Use with Pilot | 
                        10531 | 
                        10532 | 
                          | 
                     
                    
                        | 7/16 | 
                        .4375 | 
                        12114 | 
                        12214 | 
                        ---- | 
                     
                    
                        | Use with Pilot | 
                        10533 | 
                        10534 | 
                          | 
                     
                    
                        | 1/2 | 
                        .5000 | 
                        12116 | 
                        12216 | 
                        ---- | 
                     
                    
                        | 9/16 | 
                        .5625 | 
                        12118 | 
                        12218 | 
                        ---- | 
                     
                    
                        | 5/8 | 
                        .6250 | 
                        12120 | 
                        12220 | 
                        ---- | 
                     
                    
                        | 11/16 | 
                        .6875 | 
                        12122 | 
                        12222 | 
                        ---- | 
                     
                    
                        | Use with Pilot | 
                        10527 | 
                        10528 | 
                        24131 | 
                     
                    
                        | 3/4 | 
                        .7500 | 
                        12124 | 
                        12224 | 
                        3-12224 | 
                     
                    
                        | 13/16 | 
                        .8125 | 
                        12126 | 
                        12226 | 
                        3-12226 | 
                     
                    
                        | 7/8 | 
                        .8750 | 
                        12128 | 
                        12228 | 
                        3-12228 | 
                     
                    
                        | 15/16 | 
                        .9375 | 
                        12130 | 
                        12230 | 
                        3-12230 | 
                     
                    
                        | 1 | 
                        1.0000 | 
                        12132 | 
                        12232 | 
                        3-12232 | 
                     
                    
                        | 1-1/16 | 
                        1.0625 | 
                        12134 | 
                        12234 | 
                        3-12234 | 
                     
                    
                        | 1-1/8 | 
                        1.1250 | 
                        12136 | 
                        12236 | 
                        3-12236 | 
                     
                    
                        | 1-3/16 | 
                        1.1875 | 
                        12138 | 
                        12238 | 
                        3-12238 | 
                     
                    
                        | 1-1/4 | 
                        1.2500 | 
                        12140 | 
                        12240 | 
                        3-12240 | 
                     
                    
                        | 1-5/16 | 
                        1.3125 | 
                        12142 | 
                        12242 | 
                        3-12242 | 
                     
                    
                        | 1-3/8 | 
                        1.3750 | 
                        12144 | 
                        12244 | 
                        3-12244 | 
                     
                    
                        | 1-7/16 | 
                        1.4375 | 
                        12146 | 
                        12246 | 
                        3-12246 | 
                     
                    
                        | 1-1/2 | 
                        1.5000 | 
                        12148 | 
                        12248 | 
                        3-12248 | 
                     
                    
                        | 1-9/16 | 
                        1.5625 | 
                        12150 | 
                        12250 | 
                        3-12250 | 
                     
                    
                        | 1-5/8 | 
                        1.6250 | 
                        12152 | 
                        12252 | 
                        3-12252 | 
                     
                    
                        | 1-11/16 | 
                        1.6875 | 
                        12154 | 
                        12254 | 
                        3-12254 | 
                     
                    
                        | 1-3/4 | 
                        1.7500 | 
                        12156 | 
                        12256 | 
                        3-12256 | 
                     
                    
                        | 1-13/16 | 
                        1.8125 | 
                        12158 | 
                        12258 | 
                        3-12258 | 
                     
                    
                        | 1-7/8 | 
                        1.8750 | 
                        12160 | 
                        12260 | 
                        3-12260 | 
                     
                    
                        | 1-15/16 | 
                        1.9375 | 
                        12162 | 
                        12262 | 
                        3-12262 | 
                     
                    
                        | 2 | 
                        2.000 | 
                        12164 | 
                        12264 | 
                        3-12264 | 
                     
                    
                        | 2-1/16 | 
                        2.0625 | 
                        ---- | 
                        12266 | 
                        ---- | 
                     
                    
                        | 2-1/8 | 
                        2.1250 | 
                        ---- | 
                        12268 | 
                        ---- | 
                     
                    
                        | 2-3/16 | 
                        2.1875 | 
                        ---- | 
                        12270 | 
                        ---- | 
                     
                    
                        | 2-1/4 | 
                        2.2500 | 
                        ---- | 
                        12272 | 
                        ---- | 
                     
                    
                        | 2-5/16 | 
                        2.3125 | 
                        ---- | 
                        12274 | 
                        ---- | 
                     
                    
                        | 2-3/8 | 
                        2.3750 | 
                        ---- | 
                        12276 | 
                        ---- | 
                     
                
             
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                        | Cutter Dia. | 
                        Decimal 
                        Equiv. | 
                        Part Number / Depth | 
                     
                    
                        | 25mm | 
                        50mm | 
                        76mm | 
                     
                    
                        | Use with Pilot | 
                        10531 | 
                        10532 | 
                          | 
                     
                    
                        | 12mm | 
                        .4724 | 
                        12312 | 
                        12412 | 
                        ---- | 
                     
                    
                        | Use with Pilot | 
                        10533 | 
                        10534 | 
                          | 
                     
                    
                        | 13mm | 
                        .5118 | 
                        12313 | 
                        12413 | 
                        ---- | 
                     
                    
                        | 14mm | 
                        .5512 | 
                        12314 | 
                        12414 | 
                        ---- | 
                     
                    
                        | 15mm | 
                        .5906 | 
                        12315 | 
                        12415 | 
                        ---- | 
                     
                    
                        | 16mm | 
                        .6299 | 
                        12316 | 
                        12416 | 
                        ---- | 
                     
                    
                        | 17mm | 
                        .6693 | 
                        12317 | 
                        12417 | 
                        ---- | 
                     
                    
                        | 18mm | 
                        .7087 | 
                        12318 | 
                        12418 | 
                        ---- | 
                     
                    
                        | Use with Pilot | 
                        10527 | 
                        10528 | 
                        24131 | 
                     
                    
                        | 19mm | 
                        .7480 | 
                        12319 | 
                        12419 | 
                        12519 | 
                     
                    
                        | 20mm | 
                        .7874 | 
                        12320 | 
                        12420 | 
                        12520 | 
                     
                    
                        | 21mm | 
                        .8268 | 
                        12321 | 
                        12421 | 
                        12521 | 
                     
                    
                        | 22mm | 
                        .8661 | 
                        12322 | 
                        12422 | 
                        12522 | 
                     
                    
                        | 23mm | 
                        .9055 | 
                        12323 | 
                        12423 | 
                        12523 | 
                     
                    
                        | 24mm | 
                        .9449 | 
                        12324 | 
                        12424 | 
                        12524 | 
                     
                    
                        | 25mm | 
                        .9843 | 
                        12325 | 
                        12425 | 
                        12525 | 
                     
                    
                        | 26mm | 
                        1.0236 | 
                        12326 | 
                        12426 | 
                        12526 | 
                     
                    
                        | 27mm | 
                        1.0630 | 
                        12327 | 
                        12427 | 
                        12527 | 
                     
                    
                        | 28mm | 
                        1.1024 | 
                        12328 | 
                        12428 | 
                        12528 | 
                     
                    
                        | 29mm | 
                        1.1417 | 
                        12328 | 
                        12428 | 
                        12528 | 
                     
                    
                        | 30mm | 
                        1.1811 | 
                        12330 | 
                        12430 | 
                        12530 | 
                     
                    
                        | 31mm | 
                        1.2205 | 
                        12331 | 
                        12431 | 
                        12531 | 
                     
                    
                        | 32mm | 
                        1.2598 | 
                        12332 | 
                        12432 | 
                        12532 | 
                     
                    
                        | 33mm | 
                        1.2992 | 
                        12333 | 
                        12433 | 
                        12533 | 
                     
                    
                        | 34mm | 
                        1.3386 | 
                        12334 | 
                        12434 | 
                        12534 | 
                     
                    
                        | 35mm | 
                        1.37779 | 
                        12335 | 
                        12435 | 
                        12535 | 
                     
                    
                        | 36mm | 
                        1.4173 | 
                        12336 | 
                        12436 | 
                        12536 | 
                     
                    
                        | 37mm | 
                        1.4567 | 
                        12337 | 
                        12437 | 
                        12537 | 
                     
                    
                        | 38mm | 
                        1.4961 | 
                        ---- | 
                        12438 | 
                        12538 | 
                     
                    
                        | 39mm | 
                        1.5354 | 
                        ---- | 
                        12439 | 
                        12539 | 
                     
                    
                        | 40mm | 
                        1.5743 | 
                        ---- | 
                        12440 | 
                        12540 | 
                     
                    
                        | 41mm | 
                        1.6142 | 
                        ---- | 
                        12441 | 
                        12541 | 
                     
                    
                        | 42mm | 
                        1.6535 | 
                        ---- | 
                        12442 | 
                        12542 | 
                     
                    
                        | 43mm | 
                        1.6929 | 
                        ---- | 
                        12443 | 
                        12543 | 
                     
                    
                        | 44mm | 
                        1.7323 | 
                        ---- | 
                        12444 | 
                        12544 | 
                     
                    
                        | 45mm | 
                        1.7717 | 
                        ---- | 
                        12445 | 
                        12545 | 
                     
                    
                        | 46mm | 
                        1.8110 | 
                        ---- | 
                        12446 | 
                        12546 | 
                     
                    
                        | 47mm | 
                        1.8504 | 
                        ---- | 
                        12447 | 
                        12547 | 
                     
                    
                        | 48mm | 
                        1.8898 | 
                        ---- | 
                        12448 | 
                        12548 | 
                     
                    
                        | 49mm | 
                        1.9291 | 
                        ---- | 
                        12449 | 
                        12549 | 
                     
                    
                        | 50mm | 
                        1.9685 | 
                        ---- | 
                        12450 | 
                        12550 | 
                     
                    
                        | 51mm | 
                        2.0079 | 
                        ---- | 
                        12451 | 
                        12551 | 
                     
                    
                        | 52mm | 
                        2.0472 | 
                        ---- | 
                        12452 | 
                        12552 | 
                     
                
             
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                        | PILOTS FOR ROTABROACH CUTTERS | 
                     
                    
                        | Part No. | 
                        Description | 
                     
                    
                        | 10527 | 
                        25mm D.O.C. Pilot (3/4" - 2-3/8" & 19mm - 52mm) | 
                     
                    
                        | 10528 | 
                        50mm D.O.C. Pilot (3/4" - 2-3/8" & 19mm - 52mm) | 
                     
                    
                        | 10531 | 
                        25mm D.O.C. Pilot (7/16" X 12mm) | 
                     
                    
                        | 10532 | 
                        50mm D.O.C. Pilot (7/16" X 12mm) | 
                     
                    
                        | 10533 | 
                        25mm D.O.C. Pilot (1/2" - 11/16" & 13mm - 18mm) | 
                     
                    
                        | 10534 | 
                        50mm D.O.C. Pilot (1/2" - 11/16" & 13mm - 18mm) | 
                     
                    
                        | 24131 | 
                        76mm D.O.C. Pilot (3/4" - 2-3/8" & 19mm - 51mm) | 
                     
                    
                        | 4-10528 | 
                        101mm Reach Pilot for Extended Reach "12,000-Series" | 
                     
                    
                        | 6-10528 | 
                        152mm Reach Pilot for Extended Reach "12,000-Series" | 
                     
                
             
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                        | ROTABROACH TAP DRILL SIZES | 
                     
                    
                        Cutter 
                        Dia. | 
                        Decimal 
                        Equiv. | 
                        Thread | 
                        Part Number | 
                     
                    
                        | 25mm | 
                        50mm | 
                     
                    
                        | 7/16 | 
                        .4375 | 
                        1/2-13 | 
                        12114 | 
                        12214 | 
                     
                    
                        | 17/32 | 
                        .5313 | 
                        5/8-11 | 
                        12117 | 
                        12217 | 
                     
                    
                        | 21/32 | 
                        .6563 | 
                        3/4-10 | 
                        12121 | 
                        12221 | 
                     
                    
                        | 25/32 | 
                        .7812 | 
                        7/8-9 | 
                        12125 | 
                        12225 | 
                     
                
             
            
                
                    
                        | ROTABROACH EXTENDED REACH CUTTERS | 
                     
                    
                        Cutter 
                        Dia. | 
                        Decimal 
                        Equiv. | 
                        Part No. | 
                     
                    
                        | 101mm | 
                        152mm | 
                     
                    
                        | 13/16 | 
                        .8125 | 
                        4-12226 | 
                        6-12226 | 
                     
                    
                        | 15/16 | 
                        .9375 | 
                        4-12230 | 
                        6-12230 | 
                     
                    
                        | 1-1/16 | 
                        1.0625 | 
                        4-12234 | 
                        6-12234 | 
                     
                    
                        | 1-3/16 | 
                        1.1875 | 
                        4-12238 | 
                        ---- | 
                     
                
             
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Rotabroach cutters made of M42 HSS with TiN Coating increase tool life, reduce friction, & operate at cooler temperatures. For materials up to 359 BHN or gummy materials.
    
        
            | PREMIUM ROTABROACH M42 HSS TIN COATED - 25MM D.O.C. | 
        
        
            | Cutter Dia. | 
            Decimal 
            Equiv | 
            Part 
            Number | 
        
        
            | Use with Pilot | 
            10533 | 
        
        
            | 18mm | 
            .7087 | 
            12818 | 
        
        
            | 19mm | 
            .7480 | 
            12819 | 
        
        
            | Use with Pilot | 
            10527 | 
        
        
            | 22mm | 
            .8661 | 
            12822 | 
        
        
            | 25mm | 
            .9843 | 
            12825 | 
        
        
            | 26mm | 
            1.0236 | 
            12826 | 
        
        
            | 28mm | 
            1.1811 | 
            12830 | 
        
        
            | 30mm | 
            1.1811 | 
            12830 | 
        
        
            | 32mm | 
            1.2598 | 
            12832 | 
        
    
Rotabroach 12,000-Series Cutters fit all Hougen Mag Drills except HMD111, HMD115, HMD151, and HMD150.
    
        
            | ROTABROACH CUTTER KITS | 
        
        
            | Part No. | 
            Mat'l Coat | 
            Depth | 
            Diameters Included | 
        
        
            | 12001 | 
            M2HSS | 
            25mm | 
            9/16", 11/16", 13/16", 
            15/16", 1-1/16" | 
        
        
            | 12002 | 
            M2HSS | 
            50mm | 
            9/16", 11/16", 13/16", 
            15/16", 1-1/16" | 
        
        
            | 12003 | 
            M2HSS | 
            25mm | 
            14mm, 16mm, 18mm, 
            20mm, 22mm | 
        
        
            | 12004 | 
            M2HSS | 
            50mm | 
            14mm, 16mm, 18mm, 
            20mm, 22mm | 
        
        
            | 12601 | 
            M2/TiN | 
            25mm | 
            9/16", 11/16", 13/16", 
            15/16", 1-1/16" | 
        
        
            | 12702 | 
            M2/TiN | 
            50mm | 
            9/16", 11/16", 13/16", 
            15/16", 1-1/16" |