Import BDNA-20754 Straight Flute Tap 10-32 Unf Hss

Product Description

The IMPORT BDNA-20754 is a straight flute tap designed for cutting 10-32 UNF internal threads in a variety of materials. Built from high-speed steel (HSS) with a gold oxide finish, this tap offers improved lubricity and surface hardness compared to uncoated alternatives. The plug chamfer style provides a moderate lead-in, making it well suited for through-hole tapping where partial thread engagement at the start of the cut is acceptable. With 4 flutes and a right-hand thread direction, the BDNA-20754 delivers clean, consistent thread forms at 32 threads per inch. Overall length is 2-3/8 inches. It is sold individually.

This tap is appropriate for general-purpose threading operations in machine shops, maintenance and repair environments, and production settings where 10-32 UNF threaded holes are required. Common applications include tapping threads in steel, aluminum, brass, and similar metals. The plug chamfer design is the most widely used style for standard through-hole and sufficiently deep blind-hole applications, making this tap a practical choice for everyday threading tasks in light to medium materials.

Key Features

• 10-32 UNF thread form at 32 threads per inch for standard unified fine thread applications
• High-speed steel (HSS) construction provides durability and resistance to wear during threading operations
• Gold oxide finish improves surface lubricity and helps reduce friction during cutting
• Plug chamfer with 3-5 thread lead-in suits through-hole and deep blind-hole tapping
• 4-flute design promotes thread accuracy and chip clearance in moderate-feed applications
• H3 thread limit designation ensures consistent tolerance control for standard fit classes
• Right-hand thread direction for standard tapping use with conventional tap wrenches or machines

Compatibility

Designed as a general-purpose straight flute tap compatible with standard tap wrenches, tapping heads, and CNC or manual drill press setups configured for 10-32 UNF threading operations.

Installation Notes

Installation should be performed by a machinist or qualified tradesperson familiar with threading operations and appropriate cutting speeds for HSS tooling. Always use a suitable cutting fluid or tapping compound to extend tool life and improve thread quality. Ensure the workpiece is securely fixtured and the tap is properly aligned with the pilot hole before engaging. For blind holes, monitor depth carefully to avoid bottoming the tap and risking breakage.