Eagle Cutting Tool HT-10000-12-B-D Bottom Tap 1-12 Hss

Product Description

The EAGLE CUTTING TOOL HT-10000-12-B-D is a 1-12 bottom tap machined from high-speed steel (HSS) and manufactured in the USA. A bottom tap cuts threads to the very bottom of a blind hole, making it the correct choice when a through-tap or plug tap cannot reach full thread depth. Machinists, pipefitters, and maintenance mechanics rely on this tap for threading operations in steel, iron, aluminum, and similar metals where a complete thread profile is required in a closed-end bore.

This tap is suited for production and repair work in machine shops, industrial maintenance facilities, and fabrication environments. The 1-12 designation indicates a 1-inch nominal diameter with 12 threads per inch (TPI), a unified fine (UNF) pitch commonly found in mechanical assemblies, flanges, and heavy equipment components. It is appropriate for use in manual tapping with a tap wrench or in CNC and drill press setups with proper feed control.

Key Features

• Bottom tap geometry threads blind holes to full depth
• High-speed steel construction resists heat and wear during cutting
• 1-12 thread specification for 1-inch diameter, 12 TPI unified fine thread
• USA manufactured to standard tolerances
• Minimum order quantity of 1 unit

Compatibility

Designed as a standard replacement or working tap for any application requiring a 1-12 UNF bottom tap in HSS. Compatible with standard tap handles, tap wrenches, and machine tap holders sized for 1-inch taps.

Installation Notes

Secure the workpiece firmly before beginning any tapping operation. Use a cutting fluid or tapping compound appropriate for the base material to extend tool life and improve thread finish. Back the tap off periodically to break chips and prevent binding, especially in blind holes. Always follow applicable shop safety standards and wear appropriate eye protection during machining operations.

Technical Specifications

• Thread Size: 1-12
• Thread Type: Unified Fine (UNF)
• Tap Style: Bottom
• Material: High-Speed Steel (HSS)
• Country of Origin: USA
• Weight: 1.78 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-10000-12-B-D