Collection: Machine Accessories

Essential machine accessories for lapidary grinders, flat lap machines, and saw setups. Includes magnetic and PSA backing plates for quick disc changes, metal backing plates for permanent mounting, saw blade arbor adapters for cross-machine compatibility, bench wheel spacers for precise wheel alignment, and expandable drum arbor adapters. All accessories are designed for standard lapidary bench grinders, flat lap machines, and diamond saw setups.

🔥 Shop Machine Accessories – From $5.00

Available Products & Pricing

Compatible Applications

• Magnetic backing plates — quick-change disc swapping on flat lap machines between grit stages
• PSA backing plates — permanent or semi-permanent disc mounting on flat lap platens
• Saw blade arbor adapters — converting blade bore to match machine spindle on trim saws and slab saws
• Bench wheel spacers — precise alignment and positioning of grinding wheels on bench grinders
• Expandable drum adapters — fitting drum wheels to non-standard spindle bore sizes

Related Tools

• Magnetic Backed Plates — Full range of magnetic quick-change backing plates
• PSA Backing Plates — Full range of PSA adhesive backing plates
• Metal Backing Plates — Rigid metal backing plates for flat lap machines
• Bench Wheel Spacers — Full range of bench grinder spacer and bushing adapter sets
• Saw Blade Arbor Adapters — Full range of saw blade bore conversion adapters
• Expandable Drum Wheels — Rubber expanding drums for sanding belts

Frequently Asked Questions

• Q: What is the difference between magnetic backing plates and PSA backing plates?
  A: Magnetic backing plates use a magnetic surface to hold discs with magnetic backing — allowing instant disc swapping between grit stages without tools or adhesive. PSA (Pressure Sensitive Adhesive) backing plates have a sticky surface for semi-permanent disc mounting — discs adhere firmly during use but can be peeled off and replaced. Magnetic plates are preferred for multi-stage workflows where frequent disc changes are needed; PSA plates suit setups where the same disc is used for extended periods.
• Q: How do saw blade arbor adapters work?
  A: Saw blade arbor adapters are precision-machined rings that fit between the saw blade bore and the machine spindle, converting the blade's bore size to match the spindle diameter. For example, a 25mm→20mm adapter allows a blade with a 25mm bore to fit a machine with a 20mm spindle. Each set includes 5 adapters with different kerf thicknesses (0.006"–0.098") to ensure a snug, vibration-free fit.
• Q: What bench wheel spacer set should I choose — stainless steel or aluminium?
  A: The stainless steel 9-piece set ($45) is more durable and corrosion-resistant — better for wet grinding environments where water cooling is used. The aluminium 7-piece set ($45) is lighter and suitable for dry grinding applications. Both sets cover the standard spacer sizes needed for most lapidary bench grinder wheel configurations.
• Q: Do I need arbor adapters for my expandable drum wheels?
  A: Only if your machine's spindle bore doesn't match the drum's standard bore. The expandable drum arbor bushing adapter set ($5, 6pcs) covers the most common bore size conversions for lapidary bench grinders and combination machines. Check your machine's spindle diameter before ordering.