Drill America 1-21/64" HSS Drill Bit, 1/2" Shank, DWDRSD
High-speed steel drill bit with 1/2" shank for general purpose use. Provides hardness and wear resistance with black oxide for lubricity; round shank fits various toolholding systems. Customer note: mixed durability and sharpness, some reports of dulling or bending
Highlights
- hss for general purpose drilling
- black oxide lubricity and chip retention
- round shank for versatile toolholding
Pros
- high-speed steel for general purpose drilling
- black oxide treatment adds lubricity
- round shank compatible with various toolholds
- counterclockwise direction aids chip evacuation in right-hand cut tools
Cons
- mixed feedback on durability and sharpness
- some reports of dullness and bending
- hole quality and drill size mixed in customer reviews
Best For
Features
- High-speed steel for general purpose drilling with good wear resistance
- Hardness and toughness balance for extended tool life in various materials
- Black oxide finish provides lubricity and micro pockets to hold coolant near the cutting edge
- Round shank compatible with a wide range of toolholding systems
- Right-hand cut with spiral flutes for efficient chip evacuation in low to medium tensile strength materials
