Description:
The five-piece set includes embedded guide bits for #5, #6, #8, #10 and #12 screw sizes.
Specially designed steel countersunk sleeve countersink or pilot hole rod.
Allen key can adjust the depth.
Quick change of compatible standard hex shank.
Drill bits and countersunk holes for wood screws that do not need to be replaced.
Just loosen and tighten the fixing screws, the length of the drill bit can be adjusted for screws of various lengths.

Specification:
Color: as shown
Material: high speed steel
Size:
#5-1.98 mm (0.07795 inch) x 66 mm (length)
#6-2.38mm (0.0937 inch) x 56mm (length)
#8-2.78mm (0.1094 inch) x 60mm (length)
#10-3.175mm (0.125inch) x 66mm (length)
#12-OD 3.56 mm (0.14 inch) x 69 mm (length)
 
Package included:
5 * HSS drill bit
1 * Hex wrench