Eagle Cutting Tool HT-13750-6-T-I Hss Hand Tap Taper

Product Description

The EAGLE CUTTING TOOL HT-13750-6-T-I is a 1-3/8 inch, 6 TPI high-speed steel (HSS) hand tap with a taper chamfer, designed for cutting internal threads by hand in a range of metals and industrial materials. The taper chamfer — typically 8 to 10 leading threads — allows gradual thread engagement, reducing torque and the risk of tap breakage when starting a thread in a through-hole or when working with tougher stock. At 0.31 pounds, this is a solid, trade-grade tap suited for maintenance, fabrication, and repair work in mechanical, plumbing, and industrial settings.

This tap is well-suited for threading operations where a 1-3/8 inch coarse-thread profile is required. Typical applications include heavy pipe fittings, structural fastener holes, industrial machinery components, and repair threading on worn or damaged bores. The taper style makes it the preferred starting tap when working by hand, particularly when precise alignment at thread entry is critical. Machinists, millwrights, pipefitters, and maintenance technicians commonly reach for this size in industrial and plant maintenance environments.

Key Features

• 1-3/8 inch diameter, 6 TPI coarse thread form for high-load fastener applications
• High-speed steel (HSS) construction provides wear resistance across a broad range of workpiece materials
• Taper chamfer design eases thread entry and reduces starting torque
• Hand tap configuration for use with a standard tap wrench or T-handle
• Lightweight at 0.31 pounds for easy single-hand operation

Compatibility

Designed as a standard hand tap for use with any conventional tap wrench or T-handle driver that accepts the appropriate square-drive shank. Suitable for threading 1-3/8 inch, 6 TPI coarse-thread holes in compatible workpieces.

Installation Notes

Secure the workpiece before tapping and ensure the pilot hole is drilled to the correct tap drill size for a 1-3/8 inch, 6 TPI thread. Apply cutting oil liberally throughout the operation to reduce heat and extend tool life. Back off the tap approximately one-half turn for every full turn of advancement to break chips and prevent binding. Licensed machinists and journeyman-level tradespeople should follow applicable shop safety practices and applicable codes when performing threading operations on pressurized or structural components.

Technical Specifications

• Thread Size: 1-3/8 inch
• Threads Per Inch (TPI): 6
• Tap Type: Hand Tap, Taper Chamfer
• Material: High-Speed Steel (HSS)
• Weight: 0.31 pounds
• Minimum Order Quantity: 1
• Origin: Import

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-13750-6-T-I