8mm Shank Hss Countersink Router Bit Screw Extractor Woodworking Milling Cutter

Features: *High precision smooth cutting edge Easy to drill and sink *The Countersink Drill Bits Set can save your working time and improve efficiency because drilling and countersinking work in one step.(Note - Keep the drill bit vertical during operation.) *Just loosen and tighten the fixing screw with the Hex Key you can adjust the screw drilling length of various lengths.(This depth only needs to sink the screw head below the surface.) *Suitable for bench drill hand drill and conventional electric drill. Perfect for wood fiberboard particleboard plywood plastic PVC rubber etc. Specifications: 5 Sizes: 2.8x8mm 3x8mm 3.2x8mm 3.5x8mm 4x8mm (0.11 0.12 0.125 0.138 0.157 *0.31 ). Shank Size: 0.31 (8mm) Suitable for use ordinary with steel wood plastic etc. Material: 45# steel Function: screw countersunk hole Balance: +/- .003 tolerance Body: Solid Hardened Steel Blade: Industrial grade micro grain carbide Cutter: CNC ground to a 600 grit mirror-like finish Package Included: 1PCS/5PCS Router Bit