Proto J501/4 Starter Punch 3/32 Inch Steel

Product Description

The PROTO J501/4 is a starter punch designed for driving out pins, rivets, and roll pins in tight or recessed locations where a standard punch cannot seat properly. Made from steel construction, this punch measures 3/32 inch at the tip and 5 inches in overall length, placing it in a practical mid-size range for bench and field work. The starter punch tapers to a reduced tip diameter, allowing it to begin movement on a fastener before a longer pin punch finishes the job. It is a standard hand tool used by mechanics, millwrights, machinists, and trade professionals working on mechanical assemblies, motors, and equipment housings.

The PROTO J501/4 is suited for use in residential and commercial maintenance environments, machine shops, and field service applications. It works with a ball-peen or mechanics hammer to drive pins from hinge assemblies, bearing retainers, shaft couplings, and similar components. The 3/32 inch tip size targets small-diameter pins common in motors, control linkages, and precision mechanical assemblies. This punch is sold individually and is intended for use as part of a complete punch set or as a standalone replacement tool.

Key Features

• Starter punch tip geometry seats on recessed or flush pins before a pin punch finishes the drive
• 3/32 inch tip diameter targets small-diameter pins in motors and mechanical assemblies
• 5 inch overall length provides hand clearance during hammer strikes
• Steel construction for impact resistance and durability under repeated hammer use
• Sold as a single unit with no minimum order beyond one piece

Compatibility

Designed as an OEM-style replacement or standalone starter punch for use with standard mechanics hammers in general mechanical, maintenance, and trade service applications.

Installation Notes

Starter punches are used by mechanics, millwrights, and service technicians working on mechanical equipment. Always wear appropriate eye protection when driving punches, as metal fragments and chips can be ejected during use. Support the workpiece securely in a vise or on a solid work surface before striking. Use a starter punch only to begin pin movement, then switch to a pin punch of matching diameter to complete the drive.