AresMro 3/16" inch Cobalt Drill Bits(10Pcs), M35 High Speed Steel,Jobber Length Twist Drill Bits for Metal, Stainless Steel, Cast Iron, Wood and Plastic: Tools & Home Improvement

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See more product details HSS with 5% cobalt, durable, higher heat resistance and wear resistance, high-speed steel with cobalt is harder, suitable for drilling high hardness materials. 135°Split Point with straight shank prevents walking and makes drilling precise Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance

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