Coverage of Internal Diameters
For internal diameters that require increased coverage over a cross pad, our Standard Abrasives Aluminum Oxide Overlap Disc is a good option. The overlapping construction makes the disc flexible so that the operator can push it into a hole or tube and achieve full contact with internal diameters. Discs with four layers achieve abrasive action in both push and pull directions.
Aluminum Oxide for Metals, Rubber, Plastic and Composites
Aluminum oxide discs are a good match for operators who desire an all-purpose versatility and economy. The mineral cuts fast while blending and deburring and is a good choice for applications on many substrates including ferrous metals, rubber, plastic and composites.
Running an Overlap Disc
For the convenience of tool-free disc changes, our overlap discs have a threaded eyelet arbor hole that screws onto a mandrel and is secured by hand with an attachment bolt (both available separately). A shorter mandrel allows for a steadier application, while a mandrel with extended reach allows access deeper into pipe interiors. Compatible threaded Standard Abrasives Mandrels are available separately with thread sizes of 8-32, 3-48, and 1/4-20. An extended version is available with 8-32 threads.
Quality Standard Abrasives Solutions for Industrial Applications
The Standard Abrasives brand has supplied quality abrasives to the metalworking industry for over 50 years. Customers rely on our broad offering of high performance products including coated, bonded, and non-woven abrasive lines.

Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 11078 Contact Wheel Ass'y, 5/8" Dia. x 3/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 11090 Contact Wheel Assy, 5/8 Dia. x 3/8 W x 3/8 I.D., Crown Face, 70 Duro Rubber
Dynabrade 11376 Big Wheel, 4-3/8 Dia. x 1/4" W x 5/8 I.D., Urethane
Dynabrade 11642 Contact Wheel Ass'y, 4" Dia. x 5/8" W x 5/8" I.D., Scoop Face, 40 Duro Rubber
Dynabrade 11074 Contact Wheel Ass'y, 5/8" Dia. x 1/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 11068 Contact Wheel Ass'y, 5/16" Dia. x 3/8" W x 1/4" I.D., Crown Face, Steel
Dynabrade 11375 Big Wheel, 4-3/8 Dia. x 1/2" W x 5/8 I.D., Urethane
Dynabrade 11070 Contact Wheel Ass'y, 7/16" Dia. x 3/8" W x 1/4" I.D., Crown Face, 70 Duro Rubber
Dynabrade 11342 Contact Wheel Ass'y, 5/16" Dia. x 3/8" W x 3/16" I.D., Crown Face, 70 Duro Rubber
Dynabrade 11066 Contact Wheel Ass'y, 5/16" Dia. x 1/8" W x 1/4" I.D., Flat Face, Steel
Dynabrade 11076 Contact Wheel Ass'y, 7/16" Dia. x 3/8" W x 3/8" I.D., Crown Face, Steel
Dynabrade 11084 Contact Wheel Ass'y, 3/4" Dia. x 1/2" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 11080 Contact Wheel Ass'y, 1" Dia. x 3/8" W x 3/8" I.D., Round Radiused Face, 70 Duro Rubber
Dynabrade 92209 1/8" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack 
