Eagle Cutting Tool HT-6250-18-P-I Hss Hand Plug Tap 5/8-18

Product Description

The EAGLE CUTTING TOOL HT-6250-18-P-I is a 5/8-18 UNF high-speed steel hand plug tap designed for cutting internal threads by hand in metal workpieces. The plug chamfer — typically 3 to 5 threads of taper — makes it the most versatile tap style for general-purpose through-hole and blind-hole threading. Machined from HSS, it holds an edge through repeated use across steel, aluminum, brass, and similar machinable materials. Plumbers, pipefitters, electricians, HVAC technicians, and general maintenance trades keep plug taps on hand for field threading and repair work.

This tap is suited for creating 5/8-18 UNF threads in a range of shop and field applications: threading new holes in brackets, flanges, and mounting plates, chasing damaged threads on equipment, and production hand-tapping in lower-volume work. The 5/8-18 UNF thread form is a fine-pitch unified national fine standard commonly found on hydraulic fittings, precision fastener assemblies, and mechanical components across HVAC, plumbing, and industrial maintenance work. The import designation indicates offshore manufacture at a cost-effective price point for general-duty use.

Key Features

• 5/8-18 UNF thread form for fine-pitch internal threading
• High-speed steel construction for durability across machinable metals
• Plug chamfer geometry suits both through-hole and blind-hole applications
• Hand tap design for use with a standard tap wrench or T-handle
• Minimum order quantity of 1 — no multi-pack requirement

Compatibility

Designed as a general-purpose hand plug tap for any application requiring 5/8-18 UNF internal threads in machinable metals and alloys.

Installation Notes

Hand taps are installed by licensed machinists, maintenance technicians, and trade professionals using a tap wrench or T-handle driver. Always use a cutting fluid appropriate for the workpiece material to reduce friction and extend tap life. Start the tap square to the hole using a drill press or guide bushing when possible, and back off a half-turn periodically to break chips and prevent binding. Never force a tap in a blind hole — bottoming taps should be used when thread depth must reach the bottom of the hole.

Technical Specifications

• Thread Size: 5/8-18 UNF
• Tap Style: Hand Plug
• Material: High-Speed Steel (HSS)
• Weight: 0.31 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-6250-18-P-I