MRULIC Screwdriver Hex Titanium Coated Step Cone Drill Bit Hole Metal Wood Cutter 4-22mm HSS Tool household tools + Gold

Hex Titanium Coated Step Cone Drill Bit Hole Metal Wood Cutter 4-22mm HSS Tool Description: Brand new Type: drill bit Color: golden Material: HSS Surface: titanium coated Features: Cone Design Useful Tool 4-22mm Cutter Standard: 4-22mm (4 6 8 10 12 14 16 18 20 22mm) The ladder of its unique structure a bit can open a variety of specifications of aperture Do not need to use center punch compared with the ordinary twist drill is not easy to be brokenDeburring chamfering elliptic hole enlargement twist drill the function of them was unable but it is possible The use of tools: drill bench drill. Work while water cooling can effectively extend the service life of drill bit recommend drilling rate of 250-250 RPM Cutting material: sheet iron plate aluminum wood insulation boards PVC plate thickness within 5mm. Use a drill to make a variety of eyelets Package included: 1 x step drill bit Note: Please allow 1-2mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same