Scientific Cutting Tools TT180750 Threading Tool

Product Description

The SCIENTIFIC CUTTING TOOLS TT180750 is a single point internal threading tool machined from solid carbide and designed for cutting unified and metric thread forms on internal diameters. It handles a thread range of 18 to 56 threads per inch (TPI) with a minimum threading diameter of 0.18 inches and a cutting depth of 0.75 inches. The 60-degree profile angle suits standard thread forms. At 2.5 inches overall length with a 0.25-inch shank, this tool mounts in standard boring bar holders and CNC lathe turrets. It is used by machinists and toolroom technicians working on precision internal threading operations in production or job-shop environments.

This tool is suited for internal threading on CNC lathes and manual engine lathes where tight bore diameters and fine-to-coarse thread ranges are required. The solid carbide construction supports harder workpiece materials and higher cutting speeds compared to high-speed steel alternatives. The bright uncoated finish keeps the tool ready for use as supplied and is appropriate for threading aluminum, brass, mild steel, and similar materials. A projection of 0.04 inches from the edge provides the clearance geometry needed for accurate thread chasing in confined bore conditions.

Key Features

• Internal threading tool with 60-degree profile angle for standard thread forms
• Thread range: 18 to 56 TPI
• Minimum threading diameter of 0.18 inches for small-bore applications
• 0.75-inch cutting depth for reaching threads inside deep bores
• Solid carbide construction for rigidity and wear resistance
• Bright uncoated finish - no additional prep required before use
• No coolant-through design; external coolant application applies

Compatibility

Designed as an OEM-style replacement or direct tooling selection for standard 0.25-inch shank boring bar holders used in CNC lathe and manual lathe turret setups requiring internal single point threading capability.

Installation Notes

Installation is performed by a machinist or toolroom technician. Secure the 0.25-inch shank in a compatible tool holder and confirm proper tool height alignment to centerline before threading. Power down and lock out the spindle before inserting or removing the tool. Do not exceed the tool manufacturer recommended depth of cut or feed rate for the workpiece material being threaded.