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Trak-Star Twister™ Disposable Carbide Tip Rail Cutters, Also Available in Black TiAIN Coated

Item # N/A Category
  • Trak-Star Twister Bits™ are the standard tooling for drilling all types of rail. They are available in two different styles:  Carbide Tipped and Black Coated M42 HSS.
  • Twister Black Bits are re-sharpenable, 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.
  • Multiple cutting edge design, along with proper coolant flow, produces a cool cut raising the rail temperature in the hole no more than 35°F above ambient temperature. This prevents work hardening, stress cracking, service failures, and repeated repairs.

Black TiAIN Item # Carbide Item # Cutter Size Decimal Equivalent
15324 18-15224 3/4" .7500
15328 18-15228 7/8" .8750
15330 18-15230 15/16" .9375
15332 18-15232 1" 1.0000
15334 18-15234 1-1/16" 1.0625
15336 18-15236 1-1/8" 1.1250
15338 18-15238 1-3/16" 1.3125
15340 18-15240 1-1/4" 1.2500
15342 18-15242 1-5/16" 1.3125
15344 18-15244 1-3/8" 1.3750
15346 18-15246 1-7/16" 1.4375
15348 18-15248 1-1/2" 1.5000
15352 18-15252 1-5/8" 1.6250
15354 18-15254 1-11/16" 1.6875