The Snappy Quick Change Chuck saves time when switching from countersinks to driver bits with 1/4" hex shank ends. Bits are securely locked in the drive channel with a hardened chromium steel ball, not a flimsy wire lock. To release, pull back and it's ready for the next bit. Fits 3/8" and larger drill chucks.

• Quickly and easily changes drill bits
• Easy switching from countersinks to driver bits
• Fits 3/8" and larger drill chucks
• Industrial chuck
• Does not need chuck key