Scientific Cutting Tools TM450-16H Thread Mill 9/16-16 4 Flute

Product Description

The SCIENTIFIC CUTTING TOOLS TM450-16H is a solid carbide helical flute thread mill designed for cutting 9/16-16 UN threads in both internal and external applications. Built from submicron-grade solid carbide, it delivers the rigidity and wear resistance required for production threading on ferrous and non-ferrous materials. The tool runs 4 right-hand flutes with a 0.450-inch cutting diameter and a 1-inch length of cut, giving machinists a clean thread form across a practical depth range. At 3.5 inches overall length with a 0.5-inch shank, it mounts in standard collet or milling chuck toolholders used on CNC machining centers.

This thread mill is suited for job shops, production floors, and toolrooms that need a single tool to cut both internal and external 9/16-16 UN threads without changing setups. Helical interpolation on a CNC machining center is required. The bright, uncoated finish makes it a versatile choice across a range of workpiece materials where coated tools are not specified. It is well matched to through-hole and blind-hole threading operations where tap breakage is a concern and thread mill interpolation is preferred.

Key Features

• Cuts internal and external 9/16-16 UN threads in a single tool
• 4 right-hand helical flutes for smooth chip evacuation
• Submicron-grade solid carbide blank for rigidity and edge retention
• 0.450-inch cutting diameter with 1-inch length of cut
• Bright/uncoated finish suitable for a broad range of workpiece materials
• No coolant-through requirement - compatible with flood or mist coolant delivery

Compatibility

Designed for use on CNC machining centers capable of helical interpolation; accepts standard 1/2-inch collet or end mill holders. Cuts 9/16-16 UN thread form per UN thread standard.

Installation Notes

Thread milling requires a CNC control with helical interpolation capability - confirm G-code support before programming. Secure the 1/2-inch shank in a precision collet or milling chuck with adequate stick-out clearance for the 3.5-inch overall length. Verify spindle and workpiece are fully stopped before tool changes, and inspect the cutting edges for chipping between runs on abrasive materials. Thread mill feeds and speeds should be calculated based on workpiece material hardness and machine rigidity.