Mitutoyo 050109 Edge Center Finder 0.5 Inch Head

Product Description

The MITUTOYO 050109 is a mechanical edge and center finder used to locate workpiece edges and centerlines on milling machines, drill presses, and CNC machining centers. It features a 0.5-inch cylindrical contact head and a 1/2-inch shank, making it compatible with standard collets and tool holders. The single-end design uses a visual edge alert mechanism — no batteries or electronics required. Machinists and toolroom technicians rely on this type of tool to establish precise datum points before cutting operations begin. Its all-mechanical operation keeps setup simple and reliable in shop environments where electronic tooling may be impractical.

The 050109 is suited for use in manual and CNC milling setups in both production and job-shop environments. It is typically used during workholding setup to find the edge of a part or to locate the center of a bore or hole pattern. The 0.5-inch head diameter is a standard size that works across a wide range of vise and fixture setups encountered in general machining work.

Key Features

• Mechanical operation — no power source required
• Cylindrical contact head for consistent edge contact
• 0.5-inch head diameter for standard machining applications
• 1/2-inch shank fits common collets and tool holders
• Single-end design for straightforward edge and center location
• Visual edge alert mechanism for clear indication of contact

Compatibility

Designed for use with milling machines, drill presses, and CNC machining centers equipped with standard 1/2-inch collets or tool holders. Specific compatible machine models were not provided in the product data.

Installation Notes

Installation is performed by a machinist or toolroom technician during machine setup. The shank is secured in a standard collet or drill chuck — confirm the spindle is at a safe low RPM before running the finder as required by the tool type. Power down or engage an e-stop before changing or removing the tool from the spindle. Follow the machine manufacturer operating procedures and applicable shop safety standards when using edge and center finders.