The set is made and use metric system, diameter (?) in mm
Specification:
Measurement units: mm / inch
Type: Countersink Stop Collar
Material : Carbon steel
Hex shank: 2.5mm - 3/32inch (W)
Diameter ?:
1/8" (3mm)
5/32" (4mm)
13/64" (5mm)
1/4" (6mm)
5/16" (8mm)
25/64" (10mm)
15/32" (12mm)
5/8" (16mm)
Total: 8pcs
Package included:
8pcs x Solid Shaft Stop Collar Depth Drill Split Ring Woodworking Countersink Set Tool
1pc x hex shank.
01278943 - 0966196