Irwin 1801022 Speedbor Max Set with Storage Case, 10-Piece Greenlee 1/2-Inch IPS X 3/8-Inch O

1/2-Inch IPS X 3/8-Inch O

but you can accomplish nearly any electrical or plumbing related with these

is lighter than metal and does not rust

Pilot Punch 3/16" x 4-1/2"Pilot Punch 3/16" x 4-1/2"

Indexable to 180 degrees for greater leverage with 14 locking positions | Long handle for leverage | Industrial steel exceeds ANSI requirements for proven strengthAmazon

Irwin 1801022 Speedbor Max Set with Storage Case, 10-Piece Greenlee 1/2-Inch IPS X 3/8-Inch OThe Fastest Speedbor ever Tri Flute design for faster chip ejection Cutting spurs have 3 cutting edges for added durability Full screw tip allows bit to self feed Grooved hex shank prevents slipping in drill chuck or bit extensionThe IRWIN SPEEDBOR Max Speed wood drilling bit is the FASTEST SPEEDBOR EVER. The Speed Tip features a full screw point that allows bit to self feed, as well as three (3) cutting spurs for faster, cleaner holes, less breakout,