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

Product Description

The EAGLE CUTTING TOOL HT-10000-12-B-I is a 1 inch, 12 threads-per-inch (TPI) high-speed steel (HSS) hand bottom tap designed for cutting internal threads to the bottom of a blind hole. Bottom taps feature minimal chamfer on the lead threads, allowing thread cutting to proceed as close to the base of the hole as possible. This tool is driven manually using a tap wrench and is suited for threading operations where thread runout clearance is limited. It is a practical choice for machinists, millwrights, and maintenance technicians working in metalworking, fabrication, and general mechanical repair environments.

This bottom tap is appropriate for use in a wide range of threading applications involving blind holes in steel, iron, aluminum, and similar machinable materials. It is commonly used in production shops, maintenance facilities, and fabrication environments where a 1-12 UN thread form is required. The import designation indicates a cost-effective sourcing tier suitable for moderate-duty production and maintenance use rather than high-volume precision production runs.

Key Features

• Bottom tap geometry allows threading to within a few threads of the bottom of a blind hole
• 1 inch nominal diameter with 12 TPI thread pitch for standard UN coarse-adjacent thread form
• High-speed steel construction provides adequate hardness and wear resistance for threading common metals
• Designed for hand-drive operation with a standard tap wrench
• Minimum order quantity of 1 unit, available as a single tap

Compatibility

Designed as a standard replacement or supplemental hand tap for 1-12 UN thread applications in blind-hole metalworking operations.

Installation Notes

This tap is installed and operated by a machinist or maintenance technician using a properly sized tap wrench. Before beginning, ensure the workpiece is securely clamped and the pilot hole is drilled to the correct tap drill size for a 1-12 thread. Apply cutting fluid appropriate to the workpiece material to reduce heat and extend tool life. Reverse the tap periodically during cutting to break chips and prevent binding or tap breakage.

Technical Specifications

• Nominal Diameter: 1 inch
• Thread Pitch: 12 TPI
• Tap Type: Hand Bottom Tap
• Material: High-Speed Steel (HSS)
• Weight: 0.63 pounds

Standard Information

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