Osg 1101507905 Spiral Point Tap 8-32 Unc Tin Hss

Product Description

The OSG 1101507905 is a spiral point plug tap designed for right-hand threading in a wide range of ferrous and non-ferrous materials. Built from vanadium high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction during through-hole tapping operations. The 8-32 UNC thread form, H9 thread limit, and 3-flute spiral point geometry allow chips to push forward ahead of the tap, keeping the flutes clear and reducing the risk of tap breakage. Machinists and maintenance professionals use this tap in production and field settings where consistent thread quality is required.

This tap is suited for through-hole applications in aluminum, low-, medium-, and high-carbon steel, alloy steel, die steel, stainless steel, hardened steel, cast iron, high-nickel alloy, and titanium. The plug chamfer provides a gradual thread lead-in, making it appropriate for most standard through-hole tapping setups on manual machines, CNC machining centers, and hand-tapping operations where alignment can be controlled. It is sold individually and is a direct shelf replacement for shops maintaining Series 11015 tooling inventory.

Key Features

• Spiral point geometry pushes chips forward, ideal for through-hole tapping
• TiN coating reduces friction and extends tool life across a broad material range
• Vanadium high-speed steel construction resists wear in ferrous and non-ferrous applications
• H9 thread limit provides controlled oversize fit for plated or coated fastener applications
• Plug chamfer with 3 flutes balances cutting load and thread lead-in
• Right-hand thread direction, no coolant-through requirement

Compatibility

Designed as an OEM-style replacement spiral point tap for 8-32 UNC through-hole threading applications; part of OSG Series 11015.

Installation Notes

Installation is performed by machinists or maintenance technicians using a standard tap wrench, tapping head, or CNC rigid tapping cycle. Ensure the workpiece is securely fixtured and the tap is properly aligned with the drilled pilot hole before starting. Apply appropriate cutting fluid for the workpiece material to reduce heat and extend tap life. Do not reverse the tap under load without first backing off chips to avoid breakage.