Hook and Loop Backer Pads with 5/8"-11 Threads
Pickup available at Dynamic Stone Tools Warehouse (Sterling, VA)
Usually ready in 2 hours
Ships same day from Sterling, VA on orders placed before 12 PM ET. Questions about fit or use? Call 703-957-4544.
Buying for a business? Trade pricing is on dynamicstonetools.net.
Hook and Loop Backer Pads with 5/8"-11 Threads
Description
Description
4" Medium Hook and Loop Backing Pad with 5/8"-11 Threads for Power Tools
This 4" backer pad holds hook-and-loop polishing and sanding pads on an angle grinder or variable-speed polisher fitted with a 5/8"-11 spindle, the standard thread size for this class of tool in North America. The Medium version is built with a foam layer mounted on a rigid body, so it runs softer than a fully rigid backer and firmer than a flexible backer — a middle ground for work that needs some give without losing control. Construction is a three-layer design: a threaded metal hub at the center, a molded body that supplies the pad's stiffness, and a hook-fabric face that grips any loop-backed polishing, sanding, or felt pad for a tool-free swap.
Features
- 4" diameter, 5/8"-11 threaded hub
- Medium (semi-flexible) density — foam layer over a rigid body
- Hook-and-loop face accepts loop-backed polishing, sanding, and felt pads
- Tool-free pad changes — no wrench needed
- Fits angle grinders and variable-speed polishers with a 5/8"-11 spindle
- Also offered in Flexible (BPS), Rigid (BPR), and Aluminum (BPAL) versions
| SKU | Variant |
|---|---|
| BPS | Flexible |
| BPM | Medium |
| BPR | Rigid |
| BPAL | Aluminum |
- Thread the backer pad onto the grinder or polisher's 5/8"-11 spindle and tighten by hand.
- Press the loop-backed polishing, sanding, or felt pad onto the hook face until it seats flat.
- Confirm the pad is centered and fully seated before starting the tool.
- Choose this Medium pad when the work needs some conformability but still benefits from a firmer base than a fully flexible pad.
- Peel the pad off by hand to swap grits or switch tasks — no tools required.
- Inspect the hook face periodically; worn or clogged hook fabric reduces pad grip.
| Property | Detail |
|---|---|
| Diameter | 4" |
| Thread | 5/8"-11 |
| Density | Medium (semi-flexible, foam over rigid body) |
| Attachment Face | Hook-and-loop |
| Shipping Weight | 0.50 lb |
| Barcode | 7425744151550 |
| HS Code | 3926.9 |
Mount the pad fully and run it only within the tool manufacturer's rated speed. Wear eye protection, hearing protection, and a respirator rated for stone or mineral dust whenever grinding, polishing, or sanding. Inspect the pad and hook face before each use and follow OSHA silica-dust practices during stone and tile work.
What does "Medium" mean on this backer pad?
It has a foam layer mounted on a rigid body, making it softer than a fully rigid backer and firmer than a flexible one.
What thread does it use?
5/8"-11, the standard spindle thread for grinders and polishers sold in North America.
Do I need tools to change pads?
No. The hook-and-loop face lets you pull one pad off and press on another by hand.
Is a Rigid or Flexible version available instead?
Yes — the same 4" backer pad is also offered as Flexible (BPS), Rigid (BPR), and Aluminum (BPAL).
⚠ WARNING: Dust from grinding and polishing stone or mineral materials may contain substances known to cause cancer or reproductive harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.
