Jobber length drills designed for stainless steel, hard steel, wood and plastic, Swift Bore (Registered Trademark) Cobalt Steel withstands abrasion and heat generated by hard-to-machine metals Precision ground, gold-finished Cobalt Steel retains hardness at high temperatures 135-degree split point for fast penetration and accurate self centering Diameter: 1/2-inch, Overall Length: 6-inch, Shank: 3/8-inch Reduced Shank
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