Detail Mata Bor Countersink Ukuran ( 6mm 8mm 10mm ) Drill Bit HSS Collar Pelubang Kayu Hand wood
1Pcs. Countersink Chamfer ~6mm ~7mm ~8mm ~10mm
+ Sharp and durable + Suitable for hard wood + Chips will discharge from the hole on both sides of the top of the drill automatically, so the drill will not be clogged + Adjustable counter sleeve depth with wrench. + Drill and countersink for wood screws without changing bits. + Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew. + Special designed steel counter sleeve countersinks or counter bores pilot hole.