Value Collection 320-3708 Ball End Mill 1/4 in 4 Flute Hss

Product Description

The VALUE COLLECTION 320-3708 is a single-end ball end mill designed for milling contoured surfaces, pockets, and three-dimensional profiles in metal and similar materials. Built from high speed steel with a bright, uncoated finish, this tool delivers reliable cutting performance in general machining applications. The 1/4-inch cutting diameter pairs with a long-series 1-1/4-inch length of cut, giving machinists access to deeper features without sacrificing rigidity. The 3/8-inch shank diameter provides secure clamping in standard collet and end mill holders. Right-hand cutting and right-hand spiral fluting are standard on this tool.

This ball end mill is suited for manual mills and CNC machining centers used in job shop, maintenance, and toolroom environments. The long-series length of cut makes it a practical choice when standard-reach tooling cannot reach the bottom of a pocket or contoured feature. It is installed and operated by machinists and toolroom technicians working with ferrous and non-ferrous stock. The single-end configuration means the tool is replaced rather than flipped when the cutting end is worn.

Key Features

• 1/4-inch mill diameter with a 1-1/4-inch length of cut for extended reach into pockets and contours
• 4-flute spiral configuration for improved surface finish and material removal rate
• High speed steel construction provides toughness and re-sharpenability
• Bright, uncoated finish suitable for general-purpose machining without coating compatibility concerns
• Right-hand cut and right-hand flute direction match standard spindle rotation
• Long-series length type for deeper feature access compared to standard-length end mills

Compatibility

Designed as a general-purpose replacement or stocking ball end mill compatible with standard 3/8-inch collets and end mill holders used on vertical milling machines and CNC machining centers.

Installation Notes

Installation is 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 fully into the collet or holder and torque the retention hardware according to the toolholder manufacturer's specifications. Inspect the cutting edges for damage before each use and do not exceed the recommended depth of cut for the diameter and material combination.