5pcs HSS Countersink Drill Bits Set Quick Change Wood Drilling #5 #6 #8 #10 #12 CUI

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
Color:natural color
Black chamfer drill body material: steel 45

Package include
5 x Countersink Drill Bits
1 x Hex Shank specifications The diameter of 0 The diameter of 1 The diameter of 2 The diameter of 3 Total length 5# 1.87mm 4.66mm 7.2mm 10mm 49.63mm 6# 2.33mm 4.25mm 7.38mm 10mm 56.57mm 8# 2.74mm 4.8mm 8.12mm 10mm 68.67mm 10# 2.81mm 5.17mm 8.18mm 10mm 68.84mm 12# 3.53mm 6.21mm 9.89mm 10mm 70.5mm