15/16" X 4" "12,000-Series" Annular Cutter magnetic drill The 150 RPM range is

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

Unique Trak-Star Hougen features provide the best performance in the widest range of materials

Not for use with Trak-Star rail drills

Also works with Hougen Mag Drills with the 3/4" two flat shank

• High torque gear box

15/16" X 4" "12,000-Series" Annular Cutter magnetic drill The 150 RPM range isFeatures the patented Quad Helix Flutes which are a revolutionary design for deep hole drilling. The auger style flutes extract chips quickly resulting in faster, more accurate and cleaner holes. The unique Hougen by Trak Star features provide the best performance in the widest range of materials. Use with the HMD918 mag drill 3 4" Shank Resharpenable Requires pilot 4 10528 Made in USA