Four piece set includes bits for drilling pilot holes for screw sizes 6#,#8,#10,#12 and #14.
Special designed steel counter sleeve countersinks or counter bores pilot hole.
Color:As the picture shown
Bit material: HSS 4241 (titanium plating)
Drill chamfering machine: No.45 steel
Shank : 1/4
Bit size :
5 x Countersink Drill Bits
1 x Hex Wrench
100% Brand New and High Quality
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