Cobalt Countersink Drill Bits Set(5PCS), M35 HSSCO 82 Degree 5 Flutes,1/4 Inch Quick Change Hex Shank for Stainless Steel, Metal, Wood, Carbon Steel 1/4'' 3/8'' 1/2'' 5/8'' 3/4''

M35 HSS Cobalt Layered Drill Bits It is excellent prolong life, achieve smoother drilling.. Surface Burgundy oxide treatment and a five-flute design removes chips faster and dills smoother and ensures an extended life.. These countersink drill bits work hard the profound processing, achieve exact countersink holes and allows the screw heads to be flush and even with the surface of the material being utilized.. HSSCO Cobalt Countersunk Drill Bits M35 Cobalt Countersunk Bits 82 Degree 5 Flute 5 Pieces... Universal Compatibility Permanently attached 1/4" shank.. Suitable for all types of drill bits and mold grinding machines.. Easy to control with variable speed drill.. 6000 R.P.M MAX.

• 【M35 Cobalt Layered Drill Bits】M35 cobalt coated, each metal countersunk drill bit is made from high quality M35 HSS material, VALYRIANTOOL countersink drill bit set is excellent in heat, corrosion and rust resistance.
• 【5 Flutes design with 1/4" Hex Shank 】Each countersink drill is well designed in five-blade, which can reduce vibration and prolong life, achieve smoother drilling.Permanently attached 1/4" shank. Suitable for all types of drill bits and mold grinding machines. Easy to control with variable speed drill. 6000 R.P.M MAX.
• 【Precision Grinding 82° Countersink Drill Bit Set】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. These countersink drill bits work hard the profound processing, achieve exact countersink holes and allows the screw heads to be flush and even with the surface of the material being utilized.
• 【Versatility】Ideal countersink tool for the tool box, including 5 most popular sizes: 1/4, 3/8, 1/2, 5/8, 3/4 inch countersink drill bits.
• 【Dedicated Customer Service】While our products undergo rigorous quality inspections, we understand that unforeseen issues may occur. Rest assured, we are committed to providing professional customer service. If you encounter any quality issue, please contact us via Amazon for prompt assistance and replacement.