Osg 6010200 Sti Hand Tap 10-24 Unc H3 Plug Chamfer

Product Description

The OSG 6010200 is a hand STI tap designed for cutting Screw Thread Insert (STI) threads in a variety of base materials. It runs a 10-24 UNC thread form with an H3 tolerance limit and a plug chamfer entry, making it suited for through-hole and blind-hole applications where a gradual thread start is acceptable. The 3-flute geometry provides good chip clearance in a compact profile. Ground from High Speed Steel with a bright finish, this tap measures 2.375 inches overall length with a 0.875-inch thread length. Licensed electricians, machinists, and maintenance technicians reach for this tap when restoring or creating threaded insert holes in production and field repair settings.

The OSG 6010200 is applied when a standard thread has been stripped or damaged and an STI helicoil-style insert is needed to restore full thread strength. The plug chamfer style, with 3 to 5 lead threads, is the most common choice for general-purpose tapping in both through-hole and sufficiently deep blind-hole configurations. Typical material applications include aluminum, carbon steel, cast iron, and hardened steel, covering a wide range of industrial, HVAC equipment frame, electrical enclosure, and mechanical assembly repair scenarios.

Key Features

• 10-24 UNC thread form with H3 tolerance limit for consistent fit with STI inserts
• Plug chamfer entry with 3 to 5 lead threads for versatile through-hole and blind-hole use
• 3-flute design promotes chip evacuation in ferrous and non-ferrous materials
• High Speed Steel construction handles aluminum, carbon steel, cast iron, and hardened steel
• Bright finish with no coating buildup, maintaining dimensional accuracy at the cutting edge
• OSG Series 126 tap, sold individually

Compatibility

Designed for use with 10-24 UNC Screw Thread Insert (STI) applications requiring an H3 thread limit. Compatible base materials include aluminum, carbon steel, cast iron, and hardened steel.

Installation Notes

This tap is intended for use by machinists, maintenance technicians, and trade professionals familiar with hand tapping procedures. Always secure the workpiece and use a calibrated tap handle to maintain perpendicular alignment during threading. Apply appropriate cutting fluid for the base material to extend tool life and improve thread quality. Inspect the tap for wear or chipping before each use and never force a tap against resistance, as breakage in hardened materials can be difficult to recover from.