Irwin Lock-n-Load Quick Change Extensions 7/16" X 12" Dundas Jafine 7/16" diameter shackle

7/16" diameter shackle

The 16 x 24 Inch Steel Carpenter Square by Mayes is designed for laying out rafters

Use it with sump basins or pits with a minimum diameter and depth of 12 inches

Also makes a great perimeter treatment around premises

Irwin Lock-n-Load Quick Change Extensions 7/16" X 12" Dundas Jafine 7/16" diameter shackleLock n Load Quick Change Extensions Features: 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 1 4" Quick Change range now holds insert bits; magnetic for holding