Accupro 95169821 Square End Mill 1-1/4 in 7 Flute Carbide

Product Description

The ACCUPRO 95169821 is a solid carbide square end mill designed for high-performance milling in demanding machining environments. With a 1-1/4 inch diameter and a 5 inch length of cut, this tool handles deep-pocket and side-wall milling where rigidity and tool life are critical. The 7-flute geometry increases chip load per flute at aggressive feed rates, and the 38-degree helix angle promotes smooth cutting action and efficient chip evacuation. An AlTiCrN coating provides thermal resistance and extended wear life when cutting hardened steels, stainless alloys, and high-temperature materials. Machinists and tool-room professionals specify this end mill for production applications where surface finish and dimensional accuracy are non-negotiable.

This end mill is suited for CNC vertical and horizontal machining centers running ferrous and non-ferrous materials in production or job-shop environments. The single-end, right-hand cutting configuration and right-hand flute direction make it a standard fit for conventional CNC spindle setups. The micrograin carbide substrate maintains edge integrity in interrupted cuts and hard materials. The 1-1/4 inch shank diameter matches standard collet, shell mill, or hydraulic toolholder bores commonly found in CAT 40, CAT 50, and BT tooling systems. The HS series designation indicates a high-specification geometry optimized for difficult-to-machine materials.

Key Features

• 7-flute design supports high feed rates and improved surface finish in finish and semi-finish passes
• AlTiCrN coating delivers thermal and oxidation resistance for dry or near-dry machining of hardened steels
• 38-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Micrograin solid carbide substrate provides superior edge retention over standard carbide grades
• Right-hand cut and right-hand flute direction compatible with standard CNC spindle configurations
• Single-end construction; 1-1/4 inch shank diameter matches common CAT and BT toolholder bores

Compatibility

Designed as a direct-fit replacement or production end mill for CNC machining centers accepting a 1-1/4 inch shank diameter toolholder. Compatible with collet chucks, hydraulic holders, and shrink-fit holders bored to 1-1/4 inches. No specific OEM machine model compatibility was provided in the product data.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician following the machine tool manufacturer's toolholder torque and runout specifications. Ensure the spindle is fully stopped and the machine is in an E-stop or lockout state before changing tooling. Confirm holder bore cleanliness and check runout at the tool tip after installation to verify acceptable TIR before cutting. Do not exceed the toolholder's rated axial pull-out force for the shank diameter.