Scientific Cutting Tools Tm 382-18NPT Npt Thread Mill

Product Description

The SCIENTIFIC CUTTING TOOLS TM 382-18NPT is a straight flute thread mill designed for cutting NPT (National Pipe Taper) threads in both external and internal applications. Built from submicron-grade solid carbide with a bright finish, it delivers consistent thread geometry in a single helical pass. The cutter features 4 flutes, an 18 TPI pitch, a 0.382-inch cutting diameter, and a 0.8-inch length of cut. At 3.5 inches overall length with a 7/16-inch shank, it fits standard CNC machining centers and thread milling setups used in precision pipe fitting and fluid system component production.

This tool is suited for shops producing or servicing components that require NPT pipe thread connections in sizes 1/4-18 and 3/8-18. Typical applications include machining fittings, valve bodies, manifolds, and fluid system housings where tapered pipe threads must meet consistent sealing standards. The solid carbide construction makes it appropriate for production runs in ferrous and non-ferrous materials where thread accuracy and tool life are priorities.

Key Features

• Cuts both external and internal NPT threads in a single tool
• Handles 1/4-18 and 3/8-18 NPT thread sizes
• Submicron-grade solid carbide blank for rigidity and edge retention
• Straight flute geometry with 4 flutes and 18 TPI
• Bright (uncoated) finish suitable for a wide range of workpiece materials
• No coolant-through - relies on flood or mist coolant at the spindle

Compatibility

Designed for use on CNC machining centers capable of thread milling cycles, accommodating a 7/16-inch straight shank and programmed for 1/4-18 or 3/8-18 NPT thread profiles.

Installation Notes

Thread milling requires a CNC control with helical interpolation capability. Secure the 7/16-inch shank in a collet or end mill holder to the appropriate runout tolerance before beginning the cycle. Verify spindle speed, feed rate, and helical pitch settings in the CAM program against the tool manufacturer specifications before cutting. Use flood or mist coolant directed at the cutting zone, as this tool does not support coolant-through delivery.