- Each IRWIN quick-change bit holder features a carbon-steel sleeve and body for durability
- The bit extension has a patented jaw design with 6-flatted shanks to hold bits securely
- These bit holders use the Lock-n-Load system for 1-handed quick release
- 5-1/2" overall length
![Irwin® Lock-n-Load Quick Change Extensions, 3/8", 12" OAL, #IR-4935653 (1/Pkg) Irwin® Lock-n-Load Quick Change Extensions, 3/8", 12" OAL, #IR-4935653 (1/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/256879/469520/585-4935653__82053__37486.1682346703.jpg?c=2)