Split point pilot drill bit prevents bit walking
Set contains: 7/8-Inch, 1-1/8-Inch, 1-3/8-Inch plus one extra pilot bit
Integrated flange prevents the operator from drilling beyond the sheet metal
Conduit and pipe sizes: 1/2-Inch (13 mm) to 1-Inch (25 mm)
All components are packed in a rust-proof, molded plastic carrying case