QLOUNI 6 Pcs Countersink Drill Bit 1/4' Hex Shank 90 Degree HSS 5 Flute Hole Cutter Chamfering Drill Bit 6mm 8mm 9mm 12mm 16mm 19mm for Wood Quick Change Bit

Color Name:Hexagon 5 Flute QLOUNI 90 ° HSS Countersink Bit with 1/4'' hex shank and can be installed on electric drills or electric wrenches with hexagonal interface to meet your daily drilling needs Five-blade Chamfering with A Groove The countersink drill bits are made of standard high speed steel and super hard titanium coated, and the cutting edge are very sharp which can remove burrs well without leaving scratches. 6 Different Sizes Drill Bit Set HSS Chamfering Cutter contains sizes: 6mm(1/4''), 8mm(5/16''), 9mm(3/8''), 12mm(1/2''), 16mm(5/8''), 19mm(3/4''); handle diameter: 6.35mm (1/4 inch quick change hex shank) Specifications Shape: 5 flute Edge: 90 degrees Material: high speed steel 4241 (for parts with a hardness below 50hrc, such as carbon steel, thin steel plate, insulation board, PVC board, wood, etc.) Package includes 6 x Countersink Bit Set