7pcs Woodworking Countersunk Drill Bit 5 Flute Chamfer Tool with Hex Key Feature: 1. The set includes drill bits for drilling pilot holes, screw sizes are 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm.2. Specially designed steel countersunk or countersink guide holes.3. Drilling and countersinking wood screws without changing drill bits.4. Just loosen and tighten the set screws to adjust the drilling length of screws of various lengths.5. 5 flute design for quicker wood chip removal during use.6. Smooth and flat countersunk, and the nut is perfectly embedded in the surface of the workpiece. Specification: Item Type: Countersunk Drill BitDimension:3mm x 60mm(L) Chamfer Diameter: 15.8mm4mm x 75mm(L) Chamfer Diameter: 15.8mm5mm x 85mm(L) Chamfer Diameter: 15.8mm6mm x 93mm(L) Chamfer Diameter: 15.8mm7mm x 100mm(L) Chamfer Diameter: 15.8mm8mm x 110mm(L) Chamfer Diameter: 18.8mm10mm x 120mm(L) Chamfer Diameter: 18.8mmShank: 1/4 hex shankSize Error: ±2mmPackage List: 7 x Countersunk Drill Bit1 x Hex Wrench 1) We accept Alipay, West Union, TT. All major credit cards are accepted through secure payment processor ESCROW. 2) płatność musi być dokonana w ciągu 3 dni od złożenia zamówienia. 3) If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days. About shipping 1.