62/10X1/4TC - Drill countersink counterbore 12mm diameter
For abrasive materials. Tools will drill, countersink and finally counterbore a parallel hole. Designed to receive plug produced by maker Ref. 24 group. The drill diameter sizes are for a clearance hole only.
Specification
D 12 mm
D2 5.5mm
c 20mm
Ol 62mm
Shank 1/4"
Wood screw size No.10