For extended tool life and lower cost per hole 12
DRILL-TWIST 3/8"DIA X 1/4" SHK
15/32" (12mm) punch (76567) & die (76587) and charger
Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials
They are made of M2 TiN Coated high speed steel and are precision ground for excellent performance throughout the cut and long tool life
Hougen 11120C 9/16"RotaCut Hole Cutter (3 pack) doc-50 For extended tool life andItem Details Hougen RotaCut Sheet Metal Cutters are precision ground and creates clean, burr free, round holes without deforming the surrounding material. Cutter makes hole making faster and easier when used on sheet metal, plate materials and plastics. Cutter cuts 3 times faster than twist drills or hole saws and lasts 10 times longer making it ideal for electrical, piping, conduit work, sheet metal fabrication, spot weld removal, maintenance