- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
- Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
- These round shank tools have flats ground onto three sides to reduce slippage of the bit when used in drill chucks
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
- 29 screw machine length drill bits ranging in size from 1/16″ to 1/2″ in 1/64″ increments
