United Abrasives SAIT 70803 TrimBack Regular Density Flap Disc | 4-1/2" Diameter | 7/8" Arbor Hole | Zirconium 80 Grit | Type 29 | Sold by Pack of 10

United Abrasives SAIT 70803 TrimBack Regular Density Flap Disc is designed for versatility, durability, and efficient grinding performance. Built with premium zirconium 80 Grit abrasive, this disc delivers aggressive stock removal while maintaining cooler cutting and a consistent finish—making it ideal for weld removal, deburring, beveling, and general metal surface preparation. What sets the TrimBack series apart is its innovative trimmable backing, allowing operators to expose more abrasive material as the disc wears. This extends disc life, maintains a consistent grinding surface, and enhances overall productivity. The regular density flap construction delivers a balanced blend of fast cutting and smooth operation, suitable for everyday metalworking tasks.

Featuring a 4-1/2" Diameter and 7/8" Arbor Hole, the SAIT mounts quickly and securely on most angle grinders. The Type 27 flat profile provides stable, controlled grinding—ideal for flat surfaces and blending applications.

Type: Flap Disc | Abrasive Material: Zirconium | Diameter (in.): 4-1/2 | Arbor Hole (in.): 7/8 | Grit: 80 | Max RPM: 13300 | Disc Type: Type 29 | Box of: 10 | __quantity: 10

Features:

• Specially designed ABS plastic backing can easily be trimmed away to expose more abrasive material
• Unique design is ideal for hand rail and fillet weld applications
• High performance zirconium grain for a wide variety of applications
• Contaminant Free (Fe + Cl + S < 0.1%)
• Only the TrimBack™ line of flap discs are able to be trimmed to expose more abrasive overhang
• Never trim beyond the maximum trim line (more than 1/4") or the ridged edge of the backing TrimBack™ plastic backing
• Always mount a TrimBack™ flap disc on a properly guarded right angle grinder
• To properly trim a TrimBack™ flap disc, apply the plastic backing to a secured metal workpiece while the grinder is running

Looking for more information about United Abrasives/SAIT Flap Disc? Click here to view the Catalog.

For help choosing the correct United Abrasives/SAIT Flap Discs for your application, please call (800) 608-5210 or email info@intlairtool.com.