3M 7000021277 Hookit Back-up Pad 7 in X 3/4 in

Product Description

The 3M 7000021277 is a Hookit back-up pad designed for use with single-sided compounding and polishing pads in surface finishing applications. The 7-inch diameter pad measures 3/4 inches in thickness and features a 5/8-11 threaded arbor connection, making it compatible with standard rotary and random orbital tools. It uses the Hookit hook-and-loop attachment system for fast, secure pad mounting and quick removal without tools. This back-up pad also allows technicians who use double-sided wool compound pads to switch to single-sided foam polishing pads without removing the 3M 05710 adaptor. Auto body technicians and professional detailers are the primary users of this component.

This pad is suited for automotive refinishing and surface preparation environments where operators switch frequently between compounding and polishing steps. The Hookit interface ensures accurate centering of foam or wool pads during single-stage or multi-stage paint correction work. It is appropriate for body shop use and professional detailing operations where pad changes need to be fast and reliable across a production workflow.

Key Features

• 7-inch diameter with 3/4-inch thickness for standard large-pad applications
• 5/8-11 threaded arbor fits common rotary and random orbital polishers
• Hookit hook-and-loop interface enables fast pad attachment and removal without tools
• Accurate pad centering reduces vibration and uneven surface contact
• Compatible with the 3M 05710 adaptor, allowing double-sided wool pad users to run single-sided foam pads without adaptor removal
• Sold individually (each)

Compatibility

Designed for use with single-sided foam polishing pads and double-sided wool compound pads via the Hookit attachment system. Compatible with the 3M 05710 adaptor for dual-pad-type use without adaptor changeover.

Installation Notes

Thread the 5/8-11 arbor onto the polisher spindle by hand until secure before attaching any pad. Power down the tool and disconnect it from the power source before mounting or removing pads. Confirm the Hookit pad is fully seated and centered on the back-up pad face before operating the tool. Follow the polisher manufacturer guidelines for maximum RPM ratings compatible with this pad diameter.

Technical Specifications

• Diameter: 7 inches
• Thickness: 3/4 inches
• Arbor Thread: 5/8-11
• Attachment Type: Hookit Hook-and-Loop
• Weight: 0.49 pounds
• UPC: 00051131057180
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000021277