Arc Abrasives 50690 Jet Wheel Mandrel 4 Inch

Product Description

The ARC ABRASIVES 50690 is a jet wheel mandrel designed to mount and drive abrasive cut-off and grinding wheels in rotary tools, die grinders, and drill presses. It accepts wheels up to 4 inches in diameter and accommodates wheel thicknesses from 1/32 inch through 1/4 inch. The mandrel is compatible with wheels that have either a 1/4-inch or 3/8-inch center hole, making it a versatile holding solution for a wide range of thin abrasive wheels. At 0.05 pounds, it is a lightweight, single-piece accessory suited for shop technicians and trade professionals who regularly work with small-diameter abrasive wheels.

This mandrel is used in applications where small abrasive wheels need secure, centered mounting on a rotary drive tool. Typical use cases include metal cutting, deburring, and surface grinding in fabrication, HVAC, plumbing, and electrical work where access is restricted and smaller wheels are required. The included shank adapter, screw, and shoulder-screw configurations allow it to fit multiple tool and wheel configurations without additional hardware.

Key Features

• Fits abrasive wheels up to 4 inches in diameter
• Accommodates wheel thickness from 1/32 inch through 1/4 inch
• Compatible with wheels having 1/4-inch or 3/8-inch center holes
• Includes 1/4-inch shank adapter, 1/4-inch screw, and 1/4-inch screw with 3/8-inch shoulder
• Lightweight at 0.05 pounds for easy handling in tight work areas

Compatibility

Designed for use with abrasive wheels up to 4 inches in diameter and 1/4 inch thick, with either a 1/4-inch or 3/8-inch center hole, for use in rotary tools and die grinders accepting a 1/4-inch shank.

Installation Notes

Installation is typically performed by machinists, fabricators, or trade technicians using a standard rotary tool or die grinder. Always power down and disconnect the tool from its power source before mounting or removing the mandrel. Ensure the abrasive wheel is rated for the RPM of the drive tool before operation. Follow applicable ANSI B7.1 safety standards for the mounting and use of abrasive wheels.

Technical Specifications

• Maximum Wheel Diameter: 4 inches
• Wheel Thickness Range: 1/32 inch through 1/4 inch
• Compatible Wheel Hole Sizes: 1/4 inch or 3/8 inch
• Shank Size: 1/4 inch
• Weight: 0.05 pounds
• Sold As: Each

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 50690