- Twist on and twist off in 2-1/2 turns
- Disc locks securely to back-up pad, but is easily removed
- 1" – 4" Speed-Lok TS discs – all-metal fasteners – mount to the Norton Speed-Lok TS or Standard Abrasive’s® Quick Change back-up pads
- 1-1/2" – 4" Speed-Lok TR discs – rubber threaded hubs – mount to Norton TR or 3M Roloc® back-up pads
Please see the Norton Catalog - Speed-Lok Discs PDF file, located in Related Documents in the right hand navigation column of this page, for complete list of specifications for this product.