Dumont Minute Man 66637 Square Broach 14mm

Product Description

The DUMONT MINUTE MAN 66637 is a 14mm square broach designed for precision square-hole cutting in drive, fixture, and jig applications. With an overall length of 14.75 inches and a pilot hole diameter of 0.5826 inches, this broach delivers consistent dimensional accuracy in metalworking and tooling operations. The tolerance range of 0.5512 to 0.552 inches and an across-corners measurement of 0.773 to 0.775 inches make it suitable for tight-tolerance production work. The 66637 is an uncoated tool intended for professional machinists and toolmakers performing square broaching operations in a shop or production environment.

This broach is used in square broaching operations where a precisely sized square hole must be produced in a workpiece for drive components, fixtures, or jigs. It is suited for manual or hydraulic press setups where controlled downward force is applied through a guided pilot. The 3/8-inch pitch and a length of cut (LOC) range of 0.5 to 1.5 inches allow flexibility across a range of workpiece thicknesses, with a maximum pressure rating of 5,600 pounds at maximum LOC. Typical applications include production tooling, mechanical assembly fixtures, and custom drive-component fabrication.

Key Features

• 14mm square broach size with 14.75-inch overall length for deep-reach applications
• Pilot hole diameter of 0.5826 inches for guided, accurate entry
• Tolerance range of 0.5512 to 0.552 inches across flats for tight-fit square holes
• Across-corners measurement of 0.773 to 0.775 inches
• LOC range of 0.5 to 1.5 inches with 5,600 pounds maximum pressure at full LOC
• Uncoated finish; suited for drive, fixture, and jig broaching operations

Compatibility

Designed for use in standard square broaching operations on presses and broaching fixtures where a 14mm square hole profile is required in drive components, jigs, or production fixtures.

Installation Notes

Square broaching should be performed by qualified machinists using a hydraulic or arbor press with appropriate bushing support to maintain alignment. Ensure the workpiece is properly fixtured and that the pilot hole is drilled to the specified diameter before broaching. Do not exceed the rated maximum pressure for the length of cut being used. Apply cutting fluid appropriate for the workpiece material to extend tool life and maintain surface finish.