15Pcs Twist 135 degrees Oxidized Gold Cobalt Drills Bits Set for Cutting Hard Metals
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Feature: 1. High Speed Steel Material: This is a twist drill with cobalt high speed steel drill bit, which is durable and has a long service life. 2. Basic Specifications: The twist drill has a precise 135 degrees bit angle, an oxidized gold finish and a round straight shank, which can prevent walking and remove chips and particles faster. 3. Heat Resistance: Twist drill alloys containing 5percent cobalt can improve heat resistance, especially when drilling hard metals. 4. Professional Use: Twist drills are very effective in cutting hard metals such as stainless steel, cast iron, high temperature alloys, titanium alloys, hard plastics and wood. 5. Satisfying Needs: Twist drills can perfectly meet your different needs and are suitable for
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