Diablo Steel Demon 4-1/2" grinding disc uses an advanced ceramic abrasive blend that delivers up to 6X longer life than standard aluminum oxide discs. Features an integrated 5/8"-11 threaded hub that screws directly onto the grinder spindle -- no separate flange needed for faster disc changes. The 1/4" thick Type 27 depressed center design is built for aggressive material removal, weld smoothing, and surface blending.

• 4-1/2" diameter with integrated 5/8"-11 threaded hub
• 1/4" thickness for heavy material removal
• Type 27 (depressed center) grinding disc
• Ceramic abrasive blend - up to 6X longer life
• Maximum speed: 13,280 RPM
• No flange required - faster disc changes
• For grinding, weld prep, blending, and deburring

Tip: The integrated hub eliminates the backing flange, reducing setup time. Ensure your grinder has a 5/8"-11 spindle thread.