4Pcs Set Mata Bor Countersink HSS Hex Shank 6 # 8 # 10 # 12 #
Features: *100% brand new and high quality *Four piece set includes bits for drilling pilot holes for screw sizes 6#,8#,10# and 12# *Special designed steel counter sleeve countersinks or counter bores pilot hole *Adjustable counter sleeve depth with Allen wrench *Standard hex shank is quick change compatible *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 Specifications: * Material:HSS Drill 4241 * Black chamfer drill body material: steel 45 * Color:As Pictures Show * Size: 6# 2.38mm (0.0937 inch) x 55mm(L) 8# 2.78mm (0.1094 inch) x 60mm(L) 10# 3.175mm (0.125 inch) x 63mm(L) 12# 3.56mm (0.14 inch) x 65mm(L) * Shank: 1/4 hex shank Package Contents: 4 x Countersink Drill Bits 1 x Hex Shank