Cleveland C64061 Nptf Pipe Tap 1/4-18 4 Flute Hss

Product Description

The CLEVELAND C64061 is a standard NPTF pipe tap designed to cut 1/4-18 tapered pipe threads in a single pass. Built from high speed steel with a bright uncoated finish, this tap is suited for threading operations in non-ferrous metals, aluminum, and steel. It features 4 flutes with a regular hook geometry and delivers a thread length of 1.063 inches over an overall length of 2.438 inches. The shank diameter measures 0.5625 inches. Machinists, pipefitters, and HVAC technicians reach for this tap when threading ports, fittings, and pipe connections that require a pressure-tight NPTF seal.

This tap is used in production and maintenance threading applications where 1/4-18 NPTF thread form is required. Common scenarios include threading pipe ports in HVAC manifolds, refrigeration service valves, hydraulic blocks, and plumbing fittings. The NPTF thread form creates a dry-seal mechanical thread fit without requiring sealant, making it appropriate for gas, air, and fluid service applications. It is suitable for both manual and machine tapping in bench and CNC environments across residential and light commercial trade work.

Key Features

• NPTF thread form produces a pressure-tight dry-seal connection without sealant
• High speed steel construction provides wear resistance across non-ferrous metals, aluminum, and steel
• 4-flute regular hook geometry supports both hand and machine tapping
• Bright uncoated finish allows visual inspection of cutting edge condition
• Thread length of 1.063 inches and OAL of 2.438 inches suit standard pipe port depths
• Square drive shank with 0.4375-inch square length for positive tap wrench engagement

Compatibility

Designed for threading 1/4-18 NPTF pipe ports in non-ferrous metals, aluminum, and steel workpieces. Fits standard tap wrenches and holders sized for a 0.5625-inch shank diameter.

Installation Notes

Tapping operations should be performed by a qualified machinist or tradesperson familiar with pipe thread standards. Always use an appropriate cutting fluid matched to the workpiece material to extend tool life and improve thread quality. Secure the workpiece firmly before tapping and back the tap out periodically to clear chips, particularly in blind-hole applications. Verify thread form with a NPTF thread gauge after tapping to confirm dry-seal fit before final assembly.