Merit MM20-4 Overlap Slotted Disc, Square Pad, And Cross Pad Quickchange Mandrel 3 Overall Length 14 Shank Diameter 1420 Thread Size Windshield Washer Hose Kit - 4 eter Universal Washer Fluid - Want It All The mandrel has a threaded end that accepts a disc or pad, and it has a 1/4-diameter shank that inserts into a grinder's chuck. Merit Abrasives - 60 Grit, 1 Diam, Flexible Slotted Overlap Disc The mandrel is designed to fit overlap slotted discs; 2 x 2 or larger square pads that are 1/4 or 1/2 thick; and 2-1/2 x 1-1/2 and larger cross pads. Steel provides strength and extended tool life Merit, founded in 1945 and headquartered in Cleveland, OH, meets International Organization for Standardization (ISO) standards 9000 and 14001. Mandrel mounts 1/4-20 female threaded overlap slotted discs, square pads, and cross pads onto a grinder that accepts a 1/4-diameter shank Fits overlap slotted discs; square pads that are 2 x 2 or larger and 1/4 or 1/2 thick; and cross pads that are 2-1/2 x 1-1/2 and larger MERIT. OVERLAP SLOTTED DISC. SQUARE PAD. CROSS PAD QUICK CHANGE MANDREL. MM-32-4. 3" OVERALL LENGTH. 1/4" SHANK DIAMETER. #8-32 THREAD SIZE. LOT OF 4. PLEASE...