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.

• Essential power tool accessory for hand-held power & cordless drills, drill presses
• One tool with 4 key sizes for tightening and loosening chuck
• Drill without properly tightened chuck is virtually worthless - always keep extra key on hand

This part is compatible with:

• Variety of power and air tool chucks

• D1: 16.3mm (0.642"), 17.4mm (0.685"), 21.2mm (0.835"), 16.2mm (0.638")
• D3: 3.9mm (0.154"), 6mm (0.236"), 8mm (0.315"), 6.9mm (0.272")