Value Collection 723-3928 Square End Mill 1-1/4in 6 Flute Cobalt

Product Description

The VALUE COLLECTION 723-3928 is a cobalt square end mill designed for material removal in milling operations on ferrous and abrasion-resistant workpiece materials. Built from M42 cobalt high-speed steel, this single-end tool features a 1.25-inch mill diameter, a 1.5-inch length of cut, and six spiral flutes with a 30-degree helix angle. The bright, uncoated finish suits applications where coating compatibility is a concern or where re-sharpening is anticipated. Right-hand cutting and right-hand flute direction are standard. Center-cutting geometry allows plunge entry as well as conventional peripheral milling passes.

This end mill fits general-purpose milling applications in job shops, maintenance facilities, and production environments. It is suited for slotting, profiling, and peripheral milling on steel, stainless steel, and other materials where cobalt tooling provides a hardness and heat-resistance advantage over standard high-speed steel. The 0.75-inch shank diameter and 3.875-inch overall length position it for use in standard R8, CAT, BT, and collet-style toolholders that accept a 3/4-inch shank. Regular-length geometry keeps the tool rigid in setups where reach is not a limiting factor.

Key Features

• M42 cobalt construction provides elevated hardness and heat resistance compared to standard HSS end mills
• Six flutes deliver improved surface finish and higher feed rates in finishing and semi-finishing passes
• 30-degree helix angle balances cutting efficiency and chip evacuation across a range of materials
• Center-cutting design allows direct plunge entry without a pre-drilled starting hole
• Bright, uncoated finish permits straightforward reconditioning and re-sharpening
• Right-hand cut, right-hand spiral configuration compatible with conventional vertical and horizontal milling setups

Compatibility

Designed for use in milling machines, machining centers, and drill presses equipped with toolholders that accept a 3/4-inch shank diameter. Suitable for single-end square end mill applications in fractional-inch measurement systems.

Installation Notes

Installation is performed by a machinist or toolroom technician. Secure the 3/4-inch shank in a properly rated collet, end mill holder, or set-screw holder and verify runout before cutting. Always power down and lock out the spindle before changing tooling. Do not exceed the toolholder manufacturer's rated torque on set-screw or collet nut fasteners.