Irwin Lock-n-Load Quick Change Extensions 7/16" X 12" Electrical Boxes & Accessories Carbide-tipped spiral bit with WILD

Carbide-tipped spiral bit with WILD BOAR multi-cutter x-head has 4 chiseling faces and cutting edges for more efficient drilling

The MT 551 can solder up to 1" of copper tubing

For Concrete & Masonry Drilling

Provides two locking points

#6 Slotted 1" Insert Bit Tip

Irwin Lock-n-Load Quick Change Extensions 7/16" X 12" Electrical Boxes & Accessories Carbide-tipped spiral bit with WILDLock 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