Import BDNA-20719 Straight Flute Tap 8-32 Unc Hss

Product Description

The IMPORT BDNA-20719 is a straight flute tap designed to cut internal threads in ferrous and non-ferrous materials. It produces 8-32 UNC right-hand threads using a 4-flute, taper chamfer geometry that eases starting alignment and distributes cutting load across the entry threads. The body is machined from high-speed steel for hardness and wear resistance under production-rate tapping conditions. A gold oxide finish reduces friction and offers a degree of corrosion protection during storage and use. The H3 thread limit provides a controlled fit tolerance suitable for standard fastener assembly. Machinists, pipefitters, and maintenance technicians typically reach for this tap when chasing or cutting machine-screw threads in metal workpieces.

This tap is suited for hand tapping and machine tapping applications where a 8-32 UNC thread form is required. The taper chamfer makes it a practical first-choice tap for through-holes and blind holes where the tapered lead can pass through or where plug and bottoming taps will follow. It is commonly used in general metalworking, maintenance and repair operations, and light manufacturing where 8-32 machine-screw fasteners are standard. The straight flute design works best in short-chipping materials such as cast iron, free-machining steel, and brass.

Key Features

• 8-32 UNC thread form with right-hand thread direction
• Taper chamfer for guided entry and reduced starting effort
• 4 straight flutes for chip clearance in short-chipping materials
• High-speed steel construction for hardness and durability
• Gold oxide coating reduces friction and resists corrosion during storage
• H3 thread limit for controlled fit tolerance in standard fastener assemblies

Compatibility

Designed as an OEM-style replacement or standard service tap for applications requiring an 8-32 UNC straight flute taper tap in high-speed steel.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician familiar with proper tap drill selection for the 8-32 UNC thread form. Always secure the workpiece and use a calibrated tap handle or tapping attachment to maintain axial alignment. Apply appropriate cutting fluid for the base material being tapped to extend tool life and improve thread quality. Back the tap off periodically to break chips and prevent tap breakage in blind holes.