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Twister Bits™

Twister Bits annular rail cutters

Trak-Star Twister Bits™ are the standard tooling for drilling all types of rail. They are available in two different styles: Black coated M42 HSS and Carbide Tipped. Twister Black Bits are resharpenable, made in the USA and feature a Titanium Aluminum Nitride coating for extended tool life when cutting rail (up to 400 BHN). Carbide Twister Bits feature brazed in carbide tips and offer up to 2-1/2 times the tool life in both standard and extremely hard rail when used with the RB2SPD. 

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The unique annular (hollow) design and thicker cutter wall offers extended tool life and extra durability. Twister Bits feature the quarter --turn style mounting for quick and easy installation with no tools required. When used with a Trak-Star Rail Drill, installation is simple; insert the bit into the arbor, and give it a turn.
 

Twister Bits can also be used with similar rail drilling systems with a 3/4" arbor bore. The shank of the bit features a flat that easily adapts to the set-screw style mounting, offering a secure installation, and allowing Trak-Star cutting technology to be used in multiple systems.

Twister Bits are easy to install

Just insert & twist!

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           Fractional Twister Bits
   Dia     Black Part No.    Carbide Part No.
​   Use Pilot 03635 for cutters below
    3/4           15324              18-15224
    7/8           15328              18-15228
  15/16         15330              18-15230
     1              15332              18-15232
 1-1/16        15334               18-15234
  1-1/8         15336               18-15236
 1-3/16        15338               18-15238
  1-1/4         15340               18-15240
 1-5/16        15342               18-15242
  1-3/8         15344               18-15244
 1-7/16        15346               18-15246
  1-1/2         15348               18-15248
  1-5/8         15352               18-15252
1-11/16       15354               18-15254

Fractional Twister Bits for Crane
     & Girder Rail 2" DOC

          Dia     TiN Coated Part No.    
​ Use Pilot 07496 for cutters below
            3/4           15624                   
            7/8           15628        
          15/16         15630       
             1              15632            
         1-1/16        15634        
          1-1/8         15636          
         1-3/16        15638       
          1-1/4         15640      
         1-5/16        15642         
          1-3/8         15644        
         1-7/16        15646            
          1-1/2         15648        

           Metric Twister Bits
   Dia     Black Part No.    Carbide Part No.              Use Pilot 08632 for cutter below
  13           15913*                      -----
​     Use Pilot 03635 for cutters below
  19           -------                 18-15819
  22           15922*                18-15822
  25           15925                  18-15825
​  28           15928                  18-15828
  30           15930                  18-15830
  32           15932                  18-15832
  36           15936*                 18-15836*

* Non-stock standard cutters - 25 pc minimum

Pilot for Twister Bits

Twister Bit Pilots

  • 03635 For Twister Bits

  • 07496 For 2" Depth Twister Bits

  • 08632 For 13mm Twister Bits

Hole enlarging Twister Bit Pilot

Conversion Pilot

For 1-11/16" Cutters for enlarging a hole for the NorFast systems. Part No: 05784

Warning Exclamation

WARNING: This product contains Cobalt, a chemical known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov

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