Seco 75054600 Minimaster MM08 Milling Shank 5/8 Inch

Product Description

The SECO 75054600 is a replaceable tip milling shank from the Minimaster series, designed to accept MM08-style milling tips for modular end mill assemblies. The shank features a straight, 90-degree profile with a 5/8-inch (0.625-inch) shank diameter and a neck diameter of 0.299 inches, keeping the tool body clear of the workpiece during shoulder and slot milling operations. Overall length is 2.76 inches, with an effective cutting length of 0.866 inches and a head length of 0.49 inches. This holder is installed by machinists and CNC setup technicians working with modular tooling systems on vertical or horizontal machining centers.

The 75054600 is suited for milling applications where quick tip changes are required without removing the shank from the spindle or toolholder. The MM08 toolholder style is compatible with Minimaster MM08 replaceable tips, making it a practical choice for production environments that run multiple tip geometries on a shared shank body. It fits standard straight-shank toolholders accepting a 5/8-inch diameter, including ER collet chucks and side-lock holders without a Weldon flat requirement, though this shank does not include a Weldon flat.

Key Features

• MM08 Minimaster series interface accepts interchangeable replaceable milling tips
• Straight shank with 90-degree profile, 0.625 inches in diameter
• Reduced neck diameter of 0.299 inches for clearance in tight-profile cuts
• Overall length of 2.76 inches with 0.866-inch effective length
• No Weldon flat — compatible with collet and friction-fit toolholders
• Sold individually (package quantity of 1)

Compatibility

Designed for use with SECO Minimaster MM08-style replaceable milling tips. Fits toolholders accepting a straight 0.625-inch shank diameter.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the tool carousel or turret is de-energized before mounting or removing the shank. Secure the shank in the toolholder to the torque specifications provided by the toolholder manufacturer. Confirm tip seating and torque per SECO Minimaster tip installation guidelines before returning the tool to service.