Drillco 350N Series Nitro 21 Piece High-Speed Steel Mechanics Length Drill Bit Set, Black and Gold Oxide Finish, Round with Flats Shank, Spiral Flute, 135 Degrees Split Point, 1/16" - 1/4" in 1/64" increments & 9/32" - 1/2" in 1/32" increments
Product Description
Drillco 350N Series Nitro 21 Piece High-Speed Steel Mechanics Length Drill Bit Set, Black and Gold Oxide Finish, Round with Flats Shank, Spiral Flute, 135 Degrees Split Point, 1/16" - 1/4" in 1/64" increments & 9/32" - 1/2" in 1/32" increments
- 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
- 21 screw machine length drill bits ranging in size from 1/16" to 1/4" in 1/64" increments and from 9/32" to 1/2" in 1/32" increments
Technical Specifications
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