Scientific Cutting Tools PRSS-01 Taper Pipe Reamer

Product Description

The SCIENTIFIC CUTTING TOOLS PRSS-01 is a carbide-tipped taper pipe reamer designed to finish and size tapered pipe threads in metal workpieces. It cuts a 1/8-27 NPT port profile with a 0.347-inch large-end diameter and a 0.318-inch small-end diameter, producing a clean, accurate taper for leak-free pipe thread engagement. The straight-flute, right-hand-cut geometry removes material efficiently in a single pass. With a bright finish and three flutes, this reamer is suited for production and maintenance machining where consistent port geometry is critical. It is typically installed by machinists, pipefitters, and maintenance technicians working on hydraulic, pneumatic, or fluid-system components.

This reamer is used to prepare 1/8-27 NPT tapered pipe ports in ferrous and non-ferrous materials. It fits a 1/2-inch straight shank, making it compatible with standard drill presses, lathes, and hand-operated reaming setups. Typical applications include finishing cast or drilled ports in manifolds, valve bodies, fittings, and fluid-system housings where a proper NPT taper is required before assembling threaded pipe connections.

Key Features

• Carbide-tipped cutting edges for extended tool life in hard and abrasive materials
• 1/8-27 NPT taper pipe port profile for standard pipe thread fitment
• Three straight flutes with right-hand cut geometry for smooth, consistent material removal
• 0.347-inch large-end diameter and 0.318-inch small-end diameter for accurate taper sizing
• Bright finish reduces surface friction and aids chip evacuation
• 1/2-inch straight shank fits standard chucks and reaming fixtures

Compatibility

Designed as a direct-fit taper pipe reamer for 1/8-27 NPT port applications. Compatible with 1/2-inch straight-shank tool holders used in drill presses, lathes, and hand reaming equipment.

Installation Notes

This tool is typically used by machinists or maintenance technicians in a controlled machining environment. Secure the workpiece firmly before reaming and use cutting fluid appropriate for the workpiece material to prolong tool life and improve finish quality. Apply steady, even feed pressure and avoid forcing the reamer, which can chip carbide edges or distort the taper profile. Inspect the finished port with a tapered pipe thread gauge before assembly to confirm proper engagement depth.