8" No-Hole Hook & Loop Backup Pad Arbor:5/8"x11 Female Thread #34-0801 Perfect for 1/4 and 1/2

Perfect for 1/4 and 1/2 sheet finishing sanders including the Porter Cable 505

Waterproof Construction: Specially treated paper and waterproof bond withstand prolonged water exposure

Abrasive Material: Premium zirconia alumina

polished surface on metal shafts

8" No-Hole Hook & Loop Backup Pad Arbor:5/8"x11 Female Thread #34-0801 Perfect for 1/4 and 1/28" No Hole Hook & Loop Backup Pad With 5 8"x11 Female Thread The USA1 Abrasives 8" No Hole Hook & Loop Backup Pad with 5 8"x11 female thread is designed for floor sanders and angle grinders that use a 5 8"x11 threaded spindle. The hook & loop face holds 8" sanding discs firmly in place during use while allowing quick, tool free disc changes between grits. Technical Specifications Diameter: 8 inches (200mm) Attachment Face: Hook & loop Thread: 5 8"x11