Hertel E299921156 Square End Mill 15/32 in 2 Flute Hss

Product Description

The HERTEL E299921156 is a two-flute, square-end, high speed steel end mill designed for general-purpose milling in ferrous and non-ferrous materials. Built from M42 high speed steel in a bright, uncoated finish, this tool delivers reliable performance in slot milling, profile milling, and plunge operations. It measures 15/32 inches (0.4688 inches) in cutting diameter with a 1/2-inch shank diameter and an overall length of 3.25 inches. The 30-degree right-hand spiral flute geometry and center-cutting design allow both peripheral and plunge cutting without a pre-drilled entry hole. Licensed machinists, toolroom operators, and CNC programmers use this end mill in vertical mills and machining centers for conventional and climb milling applications.

This end mill is suited for light to medium-duty milling on manual knee mills, CNC vertical machining centers, and toolroom equipment. The 1-inch length of cut handles standard depth-of-cut requirements for slot and profile work in steel, aluminum, brass, and similar materials. The 1/2-inch straight shank seats in standard R8 collets, end mill holders, and ER-style collet chucks commonly found in job shop and production environments. The single-end configuration and uncoated M42 steel construction make it a practical stock tool for general machining without specialized coatings or exotic substrates.

Key Features

• 15/32-inch (0.4688-inch) cutting diameter with 1-inch length of cut
• M42 high speed steel construction for toughness in general-purpose milling
• Two-flute, right-hand spiral flute geometry with 30-degree helix angle
• Center-cutting design enables direct plunge entry without pre-drilling
• Bright, uncoated finish suitable for use with cutting fluid or dry in non-ferrous materials
• Right-hand cut direction compatible with standard spindle rotation

Compatibility

Designed as a standard straight-shank end mill for use in 1/2-inch capacity collets, end mill holders, and ER collet chucks on vertical mills and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before installing or removing the tool. Seat the shank to the full recommended engagement depth in the holder and verify runout before cutting. Do not exceed the manufacturers recommended depth of cut or feed rate for the work material and machine rigidity.