Specifications
| Piece Count | 2 | 
DIMENSIONS / UPC
| Quantity | UPC | Width | Depth | Height | Weight | |
| Each | 039564506963 | 3.4 | 1.7 | 6.1 | 0.25 | |
| Inner | 12 | 10039564506960 | 8.3 | 9.2 | 4.6 | 3.2 | 
| Master | 36 | 20039564506967 | 10.0 | 13.7 | 9.1 | 10.35 | 
      Standard Pack 1
    
  Replace worn retainer springs on air hammers with these durable springs. Compatible with many Performance Tool air hammers.
Replacement retainer springs for air hammers.
For Performance Tool items M550DB and M668.
| Piece Count | 2 | 
| Quantity | UPC | Width | Depth | Height | Weight | |
| Each | 039564506963 | 3.4 | 1.7 | 6.1 | 0.25 | |
| Inner | 12 | 10039564506960 | 8.3 | 9.2 | 4.6 | 3.2 | 
| Master | 36 | 20039564506967 | 10.0 | 13.7 | 9.1 | 10.35 |