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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 RB35. 

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.
 

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 RB35. 

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!

           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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