Accupro T2634303 Spiral Flute Tap 8-36 3 Flute Hss

Product Description

The ACCUPRO T2634303 is a spiral flute tap designed for cutting 8-36 unified fine threads in steel workpieces. Built from 3% vanadium high speed steel with a bright uncoated finish, this tap delivers clean thread formation in through-hole and blind-hole applications. The modified bottoming chamfer allows threading close to the bottom of a blind hole while still providing enough lead to start the tap reliably. With a 33-degree helix angle and three medium-style flutes, it evacuates chips efficiently in the direction of the cut. Overall length is 2.125 inches. Licensed machinists and toolroom technicians are the primary installers.

This tap is suited for threading operations in steel materials across general machining, maintenance, and repair environments. The H3 thread limit designation means it produces threads in the high end of the tolerance range, making it appropriate for use with standard taps and threading applications where moderate fit is acceptable. The right-hand flute and right-hand thread configuration matches standard clockwise tapping operations. A thread length of 8 millimeters allows useful engagement in typical tapped-hole depths for 8-36 fastener applications.

Key Features

• Modified bottoming chamfer for threading near the base of blind holes
• 3% vanadium high speed steel construction for durability in steel applications
• 33-degree helix angle promotes efficient upward chip evacuation
• H3 thread limit for consistent tolerance in standard fit applications
• Bright uncoated finish suitable for use with cutting fluids and oils
• Right-hand flute and right-hand thread for standard clockwise tapping

Compatibility

Designed for cutting 8-36 unified fine threads in steel workpieces. Material application is listed as steel. Coolant-through capability is not included in this tap.

Installation Notes

This tap is installed by machinists or tool and die technicians using a tap wrench, tapping head, or CNC tapping cycle. Before tapping, ensure the workpiece is properly secured and the pilot hole is drilled to the correct tap drill diameter for 8-36 thread specifications. Apply appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Do not force the tap if resistance increases unexpectedly, as this can result in tap breakage in the hole.