Mitutoyo 985-138 Pin Punch Set 5 Piece Drive Style

Product Description

The MITUTOYO 985-138 is a 5-piece drive-style pin punch set covering a size range of 0.0625 inches to 0.1563 inches. Each punch features a round shank and is designed for driving out rolled or solid pins in mechanical assemblies, tooling fixtures, and precision equipment. The set stores in a plastic sleeve for organized transport and job-site use. At 0.5 pounds, the kit is compact enough for a field service bag. This set is appropriate for machinists, millwrights, and maintenance technicians working on equipment requiring precise pin removal without damaging bores or surrounding components.

This pin punch set is suited for light industrial and precision maintenance applications where controlled pin driving is required. Typical use cases include disassembling shaft-mounted components, removing roll pins from linkages, and servicing tooling assemblies in machine shops or maintenance facilities. The graduated size range allows the technician to match punch diameter closely to pin diameter before final driving, reducing the risk of bore damage. The drive style means these punches are struck with a hammer rather than pressed, making them practical for bench work and in-place repairs.

Key Features

• 5-piece set covering 1/16, 5/64, 3/32, 9/64, and 5/32 inch punch sizes
• Round shank construction for consistent hammer contact and driving control
• Drive style for use with a standard machinist or ball-peen hammer
• Overall punch length of 4 inches for reach into recessed pin locations
• Plastic sleeve storage keeps punches organized and protected between uses
• Lightweight at 0.5 pounds for easy portability in a tool bag or kit

Compatibility

Designed as a general-purpose drive-style pin punch set suitable for use in machine shop, industrial maintenance, and precision assembly applications where pin sizes fall within the 0.0625 to 0.1563 inch range.

Installation Notes

Pin punches are installed by machinists and maintenance technicians using a hammer; always select a punch diameter that closely matches the pin to avoid deforming the bore. Secure the workpiece in a vise or on a stable surface before driving to prevent movement. Wear appropriate eye protection when striking punches. Never use a punch that is visibly cracked, mushroomed, or deformed, as it can fail under impact and cause injury.