Precision Twist Drill 5110378 Hss End Mill 2 Flute 5/8 in

Product Description

The PRECISION TWIST DRILL 5110378 is a high-speed steel (HSS) end mill designed for material removal, profiling, and slotting operations in metalworking and machining applications. Built with a Weldon shank for positive drive and reduced slippage in the tool holder, this end mill features a 2-flute geometry and a 5/8-inch cutting diameter. The 2-flute configuration provides adequate chip clearance for efficient cutting in ferrous and non-ferrous materials. At 0.3 pounds, it is a lightweight tooling component suited for manual milling machines and CNC setups alike. Licensed machinists and tool-and-die professionals are the primary installers and users of this tool.

This end mill is appropriate for general-purpose milling tasks including slotting, side milling, and peripheral cutting. The Weldon shank design is compatible with standard Weldon-style set-screw tool holders commonly found in vertical milling machines and CNC machining centers. The 2-flute configuration is particularly effective when cutting softer metals or materials where chip evacuation is a priority. It is sold individually and is a direct-use replacement in any setup calling for a 5/8-inch HSS end mill with a Weldon shank.

Key Features

• High-speed steel (HSS) construction for durability across a range of cutting applications
• 2-flute geometry promotes efficient chip evacuation during slotting and side milling
• Weldon shank design provides positive engagement with set-screw tool holders, reducing slippage
• 5/8-inch cutting diameter suits medium-scale material removal tasks
• Lightweight at 0.3 pounds for easy handling and tool change

Compatibility

Designed for use with Weldon-style set-screw tool holders accepting a 5/8-inch shank diameter, compatible with standard vertical milling machines and CNC machining centers that accommodate HSS end mills of this diameter.

Installation Notes

This end mill is installed by machinists or tooling technicians into a compatible Weldon-style tool holder using the set-screw retention method. Ensure the machine spindle is fully powered down and locked out before changing tooling. Inspect the shank and tool holder bore for debris or damage before seating the tool. Follow the machine manufacturer's torque guidelines for set-screw tightening to ensure secure retention during operation.

Technical Specifications

• Material: High-Speed Steel (HSS)
• Shank Type: Weldon
• Number of Flutes: 2
• Cutting Diameter: 5/8 inches
• Overall Length: 5 inches
• Weight: 0.3 pounds
• Sold As: Each

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 5110378