6PCS HSS Countersink Drill Bit Set Screw Woodworking Chamfer Tool Kit Features 100% Brand new and high quality Five piece set includes bits for drilling pilot holes for screw sizes#5, #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 Shank: 1/4” Hex Shank Color: Black Size: 5#1.98mm 6# 2.38mm 8# 2.78mm 10# 3.175mm 12# 3.56mm Package included £º 5 x Countersink Drill Bits 1 x Wrench
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