Felt Polishing Bobs – Bullet Shape (10 Piece Pack)

Precision Polishing | Gemstone Finishing | Dense Felt Construction

Grotto Gemstones Bullet-Shaped Felt Polishing Bobs are designed for the final polishing and finishing stages of gemstone cutting, cabochon preparation and detailed lapidary work.

Manufactured from dense, compressed felt, these polishing bobs provide a practical surface for applying compatible polishing compounds, helping achieve a smooth, polished finish on properly prepared gemstones.

Their bullet-shaped design is particularly useful for polishing curved surfaces, smaller areas and detailed contours where larger polishing wheels may be less suitable.

Suitable for working with Australian opals, quartz, agate and other compatible gemstones using the appropriate polishing compounds.

What's Included

Each pack contains 10 bullet-shaped felt polishing bobs.

The 10-piece selection allows you to dedicate individual bobs to different polishing compounds or abrasive grades, helping prevent cross-contamination during the polishing process.

Features & Benefits

• Dense felt construction for controlled gemstone polishing.

• Bullet-shaped design for curves, contours and detailed finishing.

• Suitable for use with compatible diamond polishing pastes, cerium oxide and aluminium oxide polishing compounds.

• Ten bobs for convenient separation of polishing compounds and grit grades.

• Suitable for compatible rotary hand tools and flex-shaft machines.

• Useful for Australian opals and a variety of other gemstones.

• Ideal for beginners, hobbyists and experienced lapidary enthusiasts.

Grotto Gemstones Workshop Tip

Apply a small amount of your chosen polishing compound to the felt bob and polish using light, controlled pressure.

Avoid excessive speed or pressure, as friction can generate heat and potentially damage heat-sensitive gemstones, particularly Australian opals.

For the best results, ensure all scratches from previous grinding and sanding stages have been removed before beginning the final polishing process.

Important: We recommend keeping separate felt bobs for each polishing compound and abrasive grade to prevent contamination from coarser particles.

Clean and dry your polishing bobs appropriately after use and store them separately to maintain their polishing performance.

Safety: Always wear suitable eye protection and use effective dust control. A correctly fitted P2 respirator is recommended where airborne hazardous dust may be present. Keep fingers clear of rotating polishing bobs and ensure all rotary tools are operated according to the manufacturer's instructions. Keep electrical equipment protected from water and use only compatible accessories at suitable operating speeds. Children must be closely supervised, and powered polishing equipment should only be used by suitably trained operators.

Grotto Gemstones & Tools Australia

Supporting your gemstone journey, from rough to polished.