Precision Twist Drill 5110006 Hss End Mill 4 Flute 3/8 in

Product Description

The PRECISION TWIST DRILL 5110006 is a 4-flute high-speed steel (HSS) end mill with a Weldon shank, designed for precision milling operations in metal fabrication and machining applications. The 3/8-inch cutting diameter and 2-11/16-inch overall length make it suited for slotting, profiling, and peripheral milling on milling machines and machining centers. The Weldon shank design provides positive drive and resistance to pullout under cutting loads. HSS construction delivers adequate toughness for general-purpose milling across a range of ferrous and non-ferrous materials.

This end mill is used in job shop, production, and maintenance machining environments. It fits standard milling machine spindles and tool holders configured for Weldon shank tooling. Machinists and tool-and-die professionals reach for 4-flute end mills when finishing cuts and side milling are the primary operations. The 3/8-inch diameter is a common size for slot and profile work on light to medium workpieces.

Key Features

• 4-flute geometry optimized for finishing and side milling passes
• Weldon shank design resists axial pullout under load
• High-speed steel construction provides toughness across general-purpose materials
• 3/8-inch cutting diameter suits common slot and profile operations
• 2-11/16-inch overall length fits standard toolholder reach requirements

Compatibility

Designed as a direct-fit replacement for standard Weldon shank end mill toolholders accepting a 3/8-inch shank diameter in milling machines and machining centers.

Installation Notes

Installation should be performed by a qualified machinist with the machine powered off and the spindle locked before tool changes. Seat the Weldon shank fully into the toolholder and tighten the set screw against the flat to the toolholder manufacturer's specified procedure. Inspect the cutting edges for chips or damage before each use, and confirm runout with a dial indicator when precision results are required.

Technical Specifications

• Number of Flutes: 4
• Shank Type: Weldon
• Cutting Diameter: 0.375 inches
• Overall Length: 2-11/16 inches
• Material: High-Speed Steel (HSS)
• Weight: 0.05 pounds
• Sold As: Each

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 5110006