1/4 Hex Shank Bits VALYRIANTOOL Cobalt Countersink Drill Bits Set(5PCS), M35 HSSCO 82 Degree 5 Flutes,1/4 Inch Quick Change Hex Shank For Stainless Steel, Metal, Wood Countersink Bits 【Versatile Toolbox Set】Countersink drill bit set includes 5 most popular sizes: 1/4, 3/8, 1/2, 5/8, 3/4 inch counter sink drill bits,along with bit holder and storage box, making it convenient and versatile. The drill bits feature a 1/4 quick change hex shank, making them compatible with various drills and machines. They will not slip in the chuck and can be easily controlled with variable speed drills 【Five-blade design with 1/4 Hex Shank 】Each countersink drill bit is well designed in five-blade,which can reduce vibration and prolong life, achieve smoother drilling. Countersink Drill Bit Set for Metal,M35 Cobalt Countersunk 【Precise 82° Countersink Drill Bit】Featuring precision-ground 82° tips, these countersink drill bits are ideal to debur, trim, enlarge and countersink clean and smooth holes in a variety of materials including metals, wood, plastic, and more. Easy to control with variable speed drill. Countersink drill is well designed in five-blade, which can reduce vibration and prolong life, achieve smoother drilling. *Precision grinding 82°tip for drilling holes ,it is used for most medium hardness stainless steel, metals, plywood, softwood, hardwood, fiberglass plastic,mild steel copper, aluminum The drill bits feature a 1/4 quick change hex shank, making them compatible with various drills and machines. 【M35 HSS Cobalt Drill Bits】M35 cobalt coated, each metal countersunk drill bit is made from high quality M35 HSS material,these countersink drill bits are excellent in tough projects, and ensuring long-lasting durability. They will not slip in the chuck and can be easily controlled with variable speed drills The drill bits are suitable for fine processing and provide accurate countersink holes for a variety of applications, including woodworking, metalworking, and DIY projects., Warm Tips: 1., Use appropriate safety measures, such as wearing safety glasses and gloves, when operating the drill bits., 2., Ensure your drill is set to the proper speed for the material being drilled to optimize performance and prevent damage., 3., Start drilling with a slow and steady speed, gradually increasing the speed as needed, to maintain control and prevent excessive heat build up., 4., Securely clamp the workpiece before drilling to ensure stability and accuracy., 5., Regularly clean the drill bits with a soft cloth to remove any debris or build-up, increasing their efficiency and life span.
