Precision Twist Drill 5110013 Hss End Mill 4 Flute 5/8 in

Product Description

The PRECISION TWIST DRILL 5110013 is a high-speed steel (HSS) end mill designed for material removal, profiling, and milling operations in metalworking and light industrial applications. Built with a 4-flute configuration and a Weldon shank, it delivers a secure, slip-resistant grip in compatible tool holders. The cutting diameter measures 5/8 inches with an overall length of 3-3/4 inches. HSS construction provides the toughness needed for interrupted cuts and varied feed rates across a range of workpiece materials. This end mill is suited for machinists, tool-and-die workers, and maintenance technicians running manual or CNC milling equipment.

This end mill is intended for use in horizontal and vertical milling machines, knee mills, and CNC machining centers. The Weldon shank flat resists rotational slippage under side-load cutting conditions, making it a reliable choice for slot milling, peripheral milling, and shoulder cuts in ferrous and non-ferrous metals. The 4-flute design improves surface finish compared to 2-flute configurations and is well suited to finishing passes on steel, cast iron, and similar materials.

Key Features

• High-speed steel (HSS) construction for toughness across varied materials
• 4-flute geometry for improved surface finish on finishing cuts
• Weldon shank flat provides positive drive and prevents slippage in the holder
• 5/8 inch cutting diameter for medium-range milling applications
• 3-3/4 inch overall length balances reach and rigidity

Compatibility

Designed for use in milling machines and machining centers equipped with Weldon-style end mill holders sized for a 5/8 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. De-energize and lock out the machine before mounting or removing the end mill. Seat the Weldon shank fully into the tool holder and tighten the set screw against the flat to secure the tool before operation. Inspect the cutting edges for chips or wear before each use and replace the end mill if damage is present.

Technical Specifications

• Material: High-Speed Steel (HSS)
• Number of Flutes: 4
• Shank Type: Weldon
• Cutting Diameter: 0.625 inches (5/8 inches)
• Overall Length: 3.75 inches (3-3/4 inches)
• Weight: 0.015 pounds
• Sold As: Each

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 5110013