This four way chuck key replaces keys for 1/4 in., 3/8 in., 1/2 in., 5/8 in. chucks and fits all major brands. The center of the key has a square drive that can be used as a handle for compressed gas cylinders.

• Use one key for 1/4 in., 3/8 in., 1/2 in., 5/8 in. chucks
• Fits all major brands – over 125 different kinds
• Doubles as a handle for compressed gas cylinders
• Perfect for on the job when you use more than one drill