- The Stone Tools 4 way chuck key is the ideal tool for unlocking and locking of various, popular drill chucks to keep drill bits in place
- Each key is made of heat-treated steel with a black oxide finish for an optimal combination of durability and hardness
- Center square feature is ideal for opening acetylene tanks
- Includes 4 pilot hole sizes: 9/32" with 10 teeth; 1/4" with 11 teeth; 15/64" with 10 teeth; 7/32" with 11 teeth
- The Stone Tools 4 way chuck key is the ideal tool for unlocking and locking of various, popular drill chucks to keep drill bits in place
- Each key is made of heat-treated steel with a black oxide finish for an optimal combination of durability and hardness
- Center square feature is ideal for opening acetylene tanks
- Includes 4 pilot hole sizes: 9/32" with 10 teeth; 1/4" with 11 teeth; 15/64" with 10 teeth; 7/32" with 11 teeth