CORTOOL 13/64 inch Cobalt Drill Bits (12Pcs), M35 HSS Metal Jobber Length Twist Drill Bit Set for Hard Metal, Stainless Steel, Iron, Copper, Aluminium, Brass, Plastic & Wood

【12Pcs 13/64" Cobalt Drill Bits】12Pcs - 13/64" (Dia 5.16mm) x 2-31/64" (Flute Length 63mm), Total Length 94mm Metal Drill Bits.This drill bit fits the majority of power drill currently on the market. 【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability. 【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed. 【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. Pay attention to speed, pressure and heat control during drilling.