1-1/16" Carbide Twister Bit (18-15234) magnetic drill When filled with water they

When filled with water they make the perfect 10:1 mixture of coolant

By using the RB2SPD and the Carbide Twister Bits

The 150 RPM range is for the Black Twister Bits or the 350 RPM range is for the Carbide Twister Bits

M42 Premium  - Mag Drills - Crane / Girder Rail

Use with 15913 Twister Bit

1-1/16" Carbide Twister Bit (18-15234) magnetic drill When filled with water theyTrak Star Twister Bits are the standard tooling for drilling all types of rail. 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 Trak Star rail drills. 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