- Carbon steel construction sleeve and body for durability and life
- Lock-n-Load system for one-handed quick release
- Patented jaw design holds bits securely on 6-flatted shanks, as well as ball detent bits
- 3/8" Quick Change range now holds insert bits; magnetic for holding
![Irwin® Lock-n-Load Quick Change Extensions, 7/16", 12" OAL, #IR-4935655 (1/Pkg) Irwin® Lock-n-Load Quick Change Extensions, 7/16", 12" OAL, #IR-4935655 (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/260696/448110/4935653__86926.1668704204.jpg?c=2)