Osg 1720802 Spiral Point Tap 6-32 Unc Hss

Product Description

The OSG 1720802 is a spiral point plug tap designed for cutting 6-32 UNC threads in a wide range of ferrous and non-ferrous materials. Built from high-speed steel and finished with an elektraLUBE coating, this tap pushes chips forward ahead of the cut, making it well suited for through-hole tapping operations. It features 2 flutes, a plug chamfer for reliable thread starting, and an H7 thread limit for consistent fit tolerances. Overall length is 2 inches with a thread length of 11/16 inches. This tool is a standard choice for machinists, maintenance technicians, and fabricators working in production or repair environments.

The 1720802 is rated for use in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel, giving it broad applicability across machine shops, HVAC equipment fabrication, and general metalworking. The plug chamfer style makes it appropriate for through-hole applications where chip evacuation ahead of the tap is an advantage. Right-hand thread direction is standard for conventional 6-32 UNC fastener installations.

Key Features

• Spiral point geometry pushes chips forward, reducing chip clogging in through-hole tapping
• High-speed steel construction provides durability across a broad range of workpiece materials
• elektraLUBE coating reduces friction and extends tool life without external cutting fluid in light-duty applications
• H7 thread limit ensures consistent tolerance control for 6-32 UNC threads
• Plug chamfer provides reliable thread entry and is standard for through-hole use
• 2-flute design suits general-purpose threading in both ferrous and non-ferrous materials

Compatibility

Designed for through-hole tapping of 6-32 UNC threads in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel workpieces. Compatible with standard tap holders and collet chucks sized for the Series 105 shank profile.

Installation Notes

This tap is installed by machinists or tooling technicians using a tap handle, machine tap holder, or CNC collet chuck appropriate for the shank size. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the drilled hole before engagement. Although the elektraLUBE coating provides lubricity, use of a compatible cutting fluid is recommended for harder materials and extended production runs to maximize tool life. Coolant-through is not supported on this tap.