Irwin Hanson 8018 Straight Flute Tap 6-32 Unc

Product Description

The IRWIN HANSON 8018 is a straight flute tap designed to cut internal threads in through-holes and shallow blind holes. Built from carbon steel with a bright uncoated finish, this tap cuts 6-32 UNC threads with a plug chamfer that distributes the cutting load across the first 3 to 5 threads for easy starting. The 3-flute design provides good chip clearance in standard materials. With an overall length of 2 inches and a thread length of 0.688 inches, it fits standard tap handles and machine holders used in light metalworking and maintenance applications. Licensed machinists, millwrights, and maintenance technicians keep this size on hand for standard machine-screw thread repair and fabrication work.

The 8018 is suited for threading 6-32 UNC holes in ferrous and non-ferrous materials during fabrication, repair, and production work. The plug chamfer makes it the go-to choice for through-hole threading where a starting tap is not required. It is commonly used in general machining, HVAC equipment assembly, electrical panel fabrication, and light structural metalwork where 6-32 fasteners are standard. The right-hand thread direction matches standard 6-32 machine screw hardware. Coolant-through capability is not supported, so this tap is intended for hand-tapping or low-speed machine tapping with applied cutting fluid.

Key Features

• 6-32 UNC thread form cuts to standard machine screw specifications
• Plug chamfer with 3 to 5 lead threads for smooth entry in through-holes
• 3-flute straight flute design provides chip clearance in general-purpose materials
• Carbon steel construction suitable for threading aluminum, mild steel, and similar materials
• Bright uncoated finish with 0.141 inch shank diameter fits standard tap wrenches and holders
• Class 2B fit produces standard tolerance threads compatible with commercial 6-32 fasteners

Compatibility

Designed as an OEM-style hand tap for use in standard 6-32 UNC threaded hole applications across general machining, maintenance, and trade assembly work.

Installation Notes

Use in a properly sized tap wrench or low-speed tapping machine. Always apply cutting fluid before and during tapping to extend tool life and reduce the risk of tap breakage. Back the tap off periodically to break chips when working in deeper holes. Follow standard shop safety practices and ensure the workpiece is securely clamped before beginning.