Irwin Hanson 80235 5/16-18 NC Tap and Letter G Drill Bit Set

The Irwin Hanson 80235 is a convenient tap and drill bit combination set designed for creating 5/16"-18 NC (National Coarse) threads. This set includes a high carbon steel plug tap paired with a Letter G drill bit, providing everything needed to drill the proper pilot hole and cut matching threads in one package.

Key Features:

• High carbon steel plug tap for general purpose threading in 5/16"-18 NC specification
• High speed steel Letter G drill bit ensures fast, precise pilot hole drilling
• Plug tap design is ideal for through-hole and blind-hole applications
• Properly matched tap and drill bit sizes eliminate guesswork
• Best suited for maintenance, repair, and general workshop applications

This tap and drill bit set is an essential addition to any toolbox for threading work in steel, aluminum, and other metals. The plug tap features a tapered leading edge for easier starting and is suitable for most threading operations where complete thread depth is not required at the bottom of a blind hole.