Precision Twist Drill 5110007 Hss End Mill 4 Flute 1/2 in

Product Description

The PRECISION TWIST DRILL 5110007 is a high-speed steel (HSS) end mill designed for metal removal in milling operations across a range of industrial and trade applications. Featuring a Weldon shank and 4-flute geometry, this end mill delivers controlled chip evacuation and surface finish quality suited to ferrous and non-ferrous materials. The cutting diameter is 1/2 inch with an overall flute length of 2-11/16 inches. HSS construction provides toughness and resistance to fracture under interrupted cuts, making it a reliable choice for job shops and maintenance machinists working on manual or CNC milling machines.

This end mill is suited for general-purpose milling tasks including slotting, profiling, and peripheral cutting. The Weldon shank design provides positive clamping in set-screw style end mill holders, reducing the risk of pullout under load. The 4-flute configuration makes it appropriate for finish milling passes and side milling in steel, aluminum, and similar materials where chip clearance is not the primary constraint.

Key Features

• High-speed steel (HSS) construction for toughness and impact resistance
• Weldon shank for positive retention in set-screw end mill holders
• 4-flute geometry suited to finish milling and side milling operations
• 1/2 inch cutting diameter for common slot and profile work
• 2-11/16 inch overall length accommodates standard milling setups

Compatibility

Designed as a general-purpose HSS end mill compatible with standard Weldon shank end mill holders sized for 1/2 inch shank tooling on manual and CNC knee mills, bed mills, and machining centers.

Installation Notes

Installation is performed by machinists or toolroom technicians. Secure the Weldon shank firmly in the end mill holder using the set-screw against the flat, and verify runout before cutting. Always de-energize and lock out the spindle before changing tooling. Follow machine manufacturer guidelines and applicable shop safety standards for speeds, feeds, and workholding.

Technical Specifications

• Material: High-Speed Steel (HSS)
• Shank Type: Weldon
• Number of Flutes: 4
• Cutting Diameter: 0.5 inches
• Overall Length: 2-11/16 inches
• Weight: 0.05 pounds
• Unit of Measure: Each

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 5110007