11/16 x 18" extra length drill bit, 1/2" shank, high speed steel
High-speed steel drill bit with extra length for reach. Features include black oxide lubrication and round shank for versatile toolholding. One customer notes long flute length and quality, though durability and sharpness vary
Highlights
- extra length for reach
- round shank versatility
- lubricity from black oxide
Pros
- high-speed steel for general purpose use
- black oxide treatment for lubricity
- round shank for various toolholding systems
- extra length for extended reach
- counterclockwise direction evacuation reduces clogging
Cons
- mixed durability and sharpness feedback
- some reports of breakage or dullness at start
Best For
Features
- High-speed steel tools are good for most general purpose applications
- offering a combination of hardness and toughness for wear resistance
- Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
- Round shanks allow use with a wide variety of toolholding systems
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
- For general purpose drilling in applications where extra length for reach is required
- designed to perform in a broad range of materials in the iron and steel families.
