Greywolf Cobalt Drill Bit Set, M35 HSS Metal 135 for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Indexed Storage Box (Ø1.5 6.5mm) 13 pcs

【High-quality 5% cobalt steel, hardness 63 HRC】This fully ground cobalt drill bit set is made of 5% pure cobalt. The service life, heat resistance, wear resistance and chipping resistance are 3 times higher than ordinary products. Two cutters and two grooves can quickly remove chips. 【Size specifications】The 13 pcs cobalt drill bit set includes: Ø1.5/2/2.5/3/3.3/3.5/4/4.2/4.5/5/5.5/6/6.5mm, which can meet basic drilling needs and comes with a plastic storage box for convenient storage. 【Twist-away design and performance】The precise 135° tip quickly penetrates the workpiece, prevents tool movement, and quickly removes chips and particles. Precision grinding ensures smooth chip discharge. 【Vertical operation】: Vertical operation can make the tip of the tool evenly stressed, which can avoid damage to the tip due to uneven force. The round handle design can be applied to more professional drilling equipment. 【Professional and versatile】: M35 cobalt high-speed steel is more suitable for machining hardened materials. It is particularly suitable for cutting hard metals such as stainless steel, cast iron, high-temperature alloys, titanium alloys, hard plastics and wood, and can also be used to cut softer materials.