Drillco 400N Series Nitro Jobber Drill Bit Set – 29-Piece HSS Black & Gold Oxide, 135° Split Point, 1/16″–1/2″

Description

• 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
• 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
• 29 jobber length drill bits ranging in size from 1/16″ to 1/2″ in 1/64″ increment