Greenlee 24477 Standard Round Knockout Punch Unit 40.5 mm Hand Tools It has a sturdy cast-iron

It has a sturdy cast-iron frame

and spins the auger head into clogs and blockage to break and remove them from pipes

it started with the Greenlee brothers' barrel-making machines

The fitting brush come three in a pack

MOD S SET S8 34152

Greenlee 24477 Standard Round Knockout Punch Unit 40.5 mm Hand Tools It has a sturdy cast-ironPUNCH UNIT ASSY, 40. 5MM BB From the Manufacturer Greenlee round standard metal punch units are complete units consisting of punch, die and draw stud. They can punch quick clean holes through metal up to 10 gauge (check specs for specific punches). They can be used with battery powered, hydraulic, ratchet or manual drivers. Properly assembled through pilot holes, they will make clean, fast and accurate holes. After cutting the slug falls free in the