Weiler 97729 Drive Arbor 3/8 Inch to 1/4 Inch Shank

Product Description

The WEILER 97729 is a drive arbor designed to adapt a 3/8 inch arbor hole to a 1/4 inch shank diameter for use with small diameter wheel brushes. It provides a secure mechanical connection between the brush and the rotary tool or die grinder, allowing the operator to run wheel brushes at speeds up to 25,000 RPM. The arbor does not include an attached spindle or flow-through spindle. At 0.05 pounds, it is a lightweight, single-piece adapter suited for bench grinder setups, portable die grinders, and similar rotary equipment used in fabrication and maintenance work.

This drive arbor is intended for use with 3 inch small diameter wheel brushes and is a common accessory in metalworking, surface prep, and deburring applications. Maintenance technicians, pipefitters, fabricators, and general trade professionals use adapters like this to mount brushes on tools with mismatched arbor and shank sizes. It is sold individually and is packaged as a single-unit quantity.

Key Features

• Adapts 3/8 inch arbor hole to 1/4 inch shank diameter
• Compatible with 3 inch small diameter wheel brushes
• Maximum operating speed of 25,000 RPM
• No attached spindle and no flow-through spindle design
• Lightweight construction at 0.05 pounds

Compatibility

Designed for use with 3 inch small diameter wheel brushes requiring a 3/8 inch arbor hole mount on tools with a 1/4 inch shank drive.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians using standard rotary tooling procedures. Always power down and disconnect the rotary tool or die grinder before mounting or removing the arbor and brush assembly. Confirm the tool spindle speed does not exceed the 25,000 RPM maximum rating of this arbor before operation. Inspect the arbor and brush for damage prior to each use.