9/16" x 18" high speed steel extra long drill bit
High-speed steel drill bit with extra reach for general drilling. Combines hardness and toughness with black oxide finish to reduce friction and help coolant retention near the cutting edge. Customers note sharpness and quality, with mixed durability and accuracy insights
Highlights
- extra long 18" reach
- black oxide surface for lubricity
- sharp, high-speed steel bit
Pros
- high-speed steel construction
- black oxide finish for lubricity
- extra long reach for deep holes
- round shanks for versatile toolholding
- effective chip evacuation when unwinding in right-hand direction
Cons
- mixed durability reports (some say it breaks in half)
- mixed accuracy feedback across materials
- some concern about straightness
Best For
Features
- High-speed steel construction for general purpose drilling
- Extra long 18 inch length with 9/16 inch diameter for extended reach
- Black oxide finish provides lubricity and coolant pockets near cutting edge
- Round shank compatible with a wide range of toolholding systems
- Right-hand cut spiral flute evacuates chips to reduce clogging during drilling
