Irwin 63428 7/16" Heavy Duty HSS Jobber Length Drill Bits 5 Pack Rear Brake Caliper Compressor Kit 85242M -- Overall diameter 1/2"

85242M -- Overall diameter 1/2" -- Cutting edge length 1-1/2" -- Shank diameter 1/2" -- Shank length 1-17/64" -- Overall length 2-15/16"

Socket slide rail for ease in storage

The bits are precisely ground using CNC machining to precision tolerances and perfectly concentric shafts

There is also an amber Power Check light in the plug

Irwin 63428 7/16" Heavy Duty HSS Jobber Length Drill Bits 5 Pack Rear Brake Caliper Compressor Kit 85242M -- Overall diameter 1/2"Irwin 63428 7 16" Heavy Duty Jobber Length Drill Bit. Reduced Shank Heavy duty web construction for strength and durability. 135 Split point begins drilling immediately minimizing bit walk . Cutting Diam: 7 16" . Applications: General Metal Drilling. Cutting Edge Material: HSS. Finish: Black Oxide. Length Group: Jobber. Point Angle: 135. Point Shape: Split Point. Resistance: Corrosion. Shank Type: Cylinder. Spiral Angle: CW. Structure: Solid. Type: