Starrett 53064 Mechanical Center Finder Set 0.25 Inch 4 Piece

Product Description

The STARRETT 53064 is a mechanical center finder set designed for locating the center of round stock, bored holes, and machined surfaces on the mill or lathe. The set uses a 0.25-inch head diameter and ships with four interchangeable attachments — ball, conical, and disc head types — giving machinists and toolroom technicians the flexibility to work across a range of workpiece geometries. The single-end configuration keeps the setup compact, and the included holder and carrying case keep attachments organized and protected between uses. This is a precision layout and setup tool, not a cutting tool, and is handled accordingly on the machine.

The 53064 suits production machining, toolroom setups, and maintenance machining environments where accurate center-finding is a routine step before drilling, boring, or milling operations. The mechanical operation requires no spindle runout sensing or electronic readout — the operator reads center location through visual or contact feedback at the workpiece. Shops running manual mills, knee mills, and similar machine tools will find this set covers the most common center-finding scenarios without the cost of an electronic edge finder system.

Key Features

• 0.25 inch head diameter fits standard collets and chucks
• Four interchangeable head attachments: ball, conical, and disc types
• Single-end mechanical design with no batteries or electronics required
• Includes holder and protective carrying case for organized storage
• 4-piece set covering the most common center-finding applications

Compatibility

Designed as a general-purpose mechanical center finder set compatible with machine tools accepting a 0.25 inch shank or collet size, including manual mills and similar equipment.

Installation Notes

This tool is installed by a machinist or toolroom technician directly into a collet, drill chuck, or tool holder on a milling or drilling machine. Power down the spindle and confirm the machine is in a safe, non-rotating state before exchanging attachments or removing the holder. No special tools are required for attachment changes. Follow the machine manufacturer guidelines and applicable shop safety procedures when operating any spindle-mounted setup tool.