Accupro FAT180500-16 Threading Tool 16 Tpi Internal Carbide

Product Description

The ACCUPRO FAT180500-16 is a single point internal threading tool ground from solid carbide for use on CNC lathes and manual turning centers. It handles internal threads starting at 0.18 inches minimum diameter with a maximum thread pitch of 16 TPI and a cutting depth of 0.5 inches. The 29-degree profile angle suits Unified and similar thread forms. The bright, uncoated finish keeps tolerances tight out of the box and suits most ferrous and non-ferrous materials. Machinists and toolroom operators reach for this style of insert-free threading tool when dimensional accuracy and edge consistency are the priority on small-bore internal threads.

This threading tool is suited to production and job-shop turning applications where internal threads must be cut in bores starting at 0.18 inches. The 1/4-inch shank fits standard boring bar holders and quick-change tool posts common on bench lathes and CNC turning centers. At 2.5 inches overall length, it provides enough reach for typical shallow-bore threading jobs without excessive overhang. It is used by machinists, tool-and-die makers, and production lathe operators working in metalworking and precision manufacturing environments.

Key Features

• Solid carbide construction for rigidity and edge retention in small-bore threading
• 0.18 inches minimum threading diameter, 16 TPI maximum
• 0.5 inches cutting depth for internal thread reach
• 29-degree profile angle compatible with Unified thread form geometry
• Bright/uncoated finish maintains as-ground tolerances for accurate thread profiles
• 0.045 inches projection from edge and 0.021 inches flat width for precise thread root engagement

Compatibility

Designed as an OEM-style single point threading tool for use in standard 1/4-inch shank boring bar holders and quick-change tool post holders on manual and CNC turning centers capable of internal threading operations.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. Ensure the lathe spindle is fully stopped and the machine is in a safe, locked-out state before mounting or removing the tool. Secure the shank firmly in the tool holder to minimize overhang and chatter during the threading pass. Verify thread pitch and profile settings on the lathe before cutting to avoid scrapping the workpiece.