Superior Electric S4-TL Universal 4 in 1 Drill Chuck Key for Drill Chucks (Large) - Pilot Shank 3.9mm,6.0mm,8.0mm,6.9mm
Superior Electric S4-TL 4 in 1 Drill Chuck Key.
Now tightening and removal of drill bits in keyed chucks is not a problem anymore! This versatile product works for most chucks and fits all major brands.
Can be used for a variety of power and air tool chucks. Chuck Key Fits 3/8" & 1/2" Chuck.