Versatile flange nut kit includes a 9mm silver D-ring nut for tight spaces and a 13.5mm black knurled nut for maximum stability. Tool-free quick change design allows for instant hand tightening without a wrench, reducing downtime. Compatible with standard 5/8"-11 UNC grinders, fitting most 4-1/2", 5", 7", and 9" models. Heavy-duty self-locking build crafted from heat-treated carbon steel, withstanding 12,000+ RPM. Optimized for flush and heavy cuts, ensuring a secure fit for thin cutting wheels, flap discs, and thick abrasive accessories. This angle grinder flange nut set includes one 9mm silver D-ring nut for tight spaces and one 13.5mm black knurled nut for max stability. The ultimate 2-in-1 replacement parts kit for versatile grinding tasks. Achieve tool-free quick change efficiency. The silver pull ring and black knurled grip allow instant hand tightening without a wrench. Rapidly secure angle grinder attachments to reduce downtime. This quick-release flange nut fits most 4-1/2", 5", 7" and 9" models. Works with for DeWalt, for Makita, for Ryobi and for Ridgid. Securely holds cutoff wheels, flap discs and diamond blades. Not for M10/M14. Crafted from heat-treated carbon steel, these locking nuts withstand 12,000+ RPM. The bottom self-locking texture bites firmly to prevent grinding wheels from loosening or slipping during operation. Use the low-profile silver nut for interference-free flush cutting, or the thick black nut for heavy-duty grip. Ensures a secure fit for thin cutting wheels, flap discs, and thick abrasive accessories. Color: As Shown Material: Steel Package Contents: 1X Angle Grinding Tool Flange Nut Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.