Accupro T2634465 Spiral Flute Tap 5/16-24 3 Flute

Product Description

The ACCUPRO T2634465 is a spiral flute tap designed for cutting internal threads in steel workpieces. It features a 5/16-24 thread size, three medium-helix flutes at a 33-degree helix angle, and a modified bottoming chamfer for threading into shallow or blind holes. The tap is manufactured from 3 percent vanadium high speed steel (HSS) with a bright, uncoated finish. At 2.7188 inches overall length, it is sized for use in machining centers, CNC equipment, and manual tapping operations. Machinists and tooling professionals use this tap for precise, right-hand internal threading in ferrous materials.

This tap is intended for threading steel applications where chip evacuation through a spiral flute is required. The spiral flute design pulls chips up and out of the hole, making it well suited for blind-hole tapping where chip packing would otherwise cause tap breakage or thread damage. The modified bottoming chamfer allows threading close to the bottom of a blind hole while maintaining controlled thread start characteristics. It is packaged and sold individually.

Key Features

• 5/16-24 thread size with right-hand thread direction for standard inch-series internal threading
• 33-degree helix angle medium spiral flute design promotes upward chip evacuation in blind holes
• Modified bottoming chamfer for threading close to the base of blind holes
• 3 percent vanadium high speed steel construction for wear resistance in steel cutting applications
• H5 thread limit for controlled tolerance threading
• Bright, uncoated finish suitable for use with cutting fluid on steel workpieces

Compatibility

Designed for threading steel workpieces in machining operations requiring a 5/16-24 inch-series internal thread. Suitable for use in standard tap holders, collet chucks, and tapping heads compatible with this tap shank diameter and overall length.

Installation Notes

This tap should be installed by a machinist or tooling professional in a properly sized tap holder or collet that provides axial alignment. Always apply an appropriate cutting fluid or tapping compound when threading steel to extend tool life and improve thread finish. Verify spindle speed and feed rate are set to values appropriate for the tap diameter and material before starting the operation. Never force a tap against the bottom of a blind hole without accounting for the chamfer length clearance.