Clamp Range 1-16mm B16 Keyless Drill Chuck Self Tighten MT2 B16 Self Tightening Drill Chuck MK2 Lathe Milling Drilling Machines Clamp Range 1-16mm B16 Keyless Drill Chuck Self Tighten MT2 B16 Self Tightening Drill Chuck MK2 Lathe Milling Drilling Machines. Sale price : $25.60 Category : Tools