Osg 1721602 Spiral Point Tap 10-24 Unc Hss

Product Description

The OSG 1721602 is a spiral point plug tap designed for cutting 10-24 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 is suited for through-hole threading applications where chip evacuation is a priority. The spiral point geometry pushes chips ahead of the cutting edge and out of the hole, reducing the risk of chip packing and tap breakage. With an H7 thread limit and a 0.875-inch thread length, it delivers consistent thread quality in production and repair environments. Machinists and maintenance technicians reach for this tap in both CNC and manual tapping operations.

This tap is intended for right-hand threaded through-hole applications. The 10-24 UNC designation makes it a common choice for machine screw threads found in light-gauge structural assemblies, electrical enclosures, and general industrial fabrication. Its material application range covers aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel, making it versatile across a broad set of shop environments. It is sold individually and is appropriate for use in manual tap handles or power-tapping setups.

Key Features

• 10-24 UNC thread form with right-hand cutting direction
• Spiral point geometry pushes chips forward for efficient evacuation in through-holes
• High-speed steel construction provides durability across ferrous and non-ferrous materials
• elektraLUBE coating reduces friction and extends tool life
• H7 thread limit for close-tolerance, consistent thread fit
• Plug chamfer style for standard through-hole starting and threading

Compatibility

Designed as an OEM-style replacement or direct-use tap for 10-24 UNC through-hole threading applications across aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, high-carbon steel, and hardened steel workpieces.

Installation Notes

Threading operations should be performed by a qualified machinist or maintenance technician familiar with proper tap speeds, feeds, and lubrication practices. Always secure the workpiece and use an appropriate tap handle or tapping chuck to maintain axial alignment. Apply cutting fluid as needed for the base material even when using a coated tap. Inspect the tap for wear or chipping before each use and do not force a tap that has stalled, as breakage and workpiece damage may result.