Dumont Minute Man 33305 Collared Broach Bushing 1/2 in

Product Description

The DUMONT MINUTE MAN 33305 is a Style A collared broach bushing designed to guide and support broaching tools during precision hole finishing operations. With a 0.5-inch diameter and a bushing length of 1.125 inches, this bushing fits into a guide plate or fixture to keep the broach aligned and prevent deflection during the cutting stroke. The collar provides a positive stop against the fixture face, ensuring consistent depth and repeatable results. Machinists and tool-and-die professionals rely on this type of bushing to maintain broach alignment on manual presses and hydraulic broaching machines alike.

This bushing is suited for light industrial and toolroom applications where precise internal keyway or hole broaching is required. It is commonly installed in broaching fixtures used with rotary or push-type broaches on arbor presses and dedicated broaching presses. The 0.5-inch diameter makes it appropriate for standard fractional broach sizing in small-to-medium workpiece applications. Typical users include machinists, maintenance technicians, and tool room operators working in manufacturing, repair, and fabrication environments.

Key Features

• Style A collared design provides a positive stop against the fixture face for consistent broach depth
• 0.5-inch bushing diameter sized for standard fractional broach tooling
• 1.125-inch bushing length offers adequate guide engagement for controlled broach travel
• Collar construction keeps the bushing seated firmly in the guide plate during operation
• Sold individually, allowing single-piece replacement or fixture assembly as needed

Compatibility

Designed as an OEM-style replacement or new-build component for broaching fixtures requiring a Style A collared bushing with a 0.5-inch diameter and 1.125-inch length.

Installation Notes

Installation is typically performed by a machinist or toolroom technician. Ensure the press or broaching machine is fully de-energized and the ram is in the down-and-locked position before removing or installing guide bushings. The bushing should be pressed or hand-fit into the fixture plate bore with the collar seated flush against the plate face. Verify broach-to-bushing clearance before resuming production to avoid binding or premature tool wear.