Value Collection 720-3617 Square End Mill Hss 1-1/4 in

Product Description

The VALUE COLLECTION 720-3617 is a single-end, square-profile end mill ground from M2 high speed steel and intended for milling operations in ferrous and non-ferrous materials. The cutter measures 1.25 inches in diameter with a 6-inch length of cut, making it well-suited for deep-cavity profiling, slotting, and peripheral milling where extended reach is required. Six spiral flutes in a right-hand cutting direction provide a good balance of chip evacuation and surface finish. The bright, uncoated finish reflects the base M2 material with no additional coating treatment applied.

This end mill fits applications in job shop machining, tool and die work, and general-purpose milling on manual knee mills and CNC vertical machining centers. The extra-long overall length of 8.5 inches combined with the 6-inch length of cut makes it appropriate for deep-reach work such as mold cavities, deep pockets, and stepped features that shorter-reach tools cannot access. It is a single-end tool, meaning it is not reversible, and is sized for direct chuck or collet mounting in standard 1.25-inch toolholding.

Key Features

• 1.25-inch mill diameter with matching 1.25-inch shank for rigid, concentric toolholding
• 6-inch length of cut supports deep-pocket and extended-reach milling operations
• Six right-hand spiral flutes with a 30-degree helix angle for efficient chip removal
• M2 high speed steel construction provides toughness and edge retention in general milling applications
• Bright, uncoated finish — no additional coating that could alter dimensional tolerances
• Extra-long series (VC-HSS-6) at 8.5 inches overall length for deep-reach work
• Non-centercutting geometry — not suitable for direct plunge cuts

Compatibility

Designed as a standard-shank replacement or general-use end mill for 1.25-inch collet chucks, shell mill adapters, or end mill holders on manual and CNC vertical milling machines requiring an extra-long, 6-flute HSS square end mill.

Installation Notes

Installation is performed by a machinist or toolroom technician using a compatible 1.25-inch collet or end mill holder torqued per the toolholder manufacturer's specifications. Ensure the machine spindle is fully stopped and locked before changing tooling. This tool is non-centercutting and must be ramped or helically interpolated into the material rather than plunge-cut directly. Verify runout at the cutting diameter after clamping before initiating a cut.