AMSUO 20-Piece Diamond Grinding Needle Set — Rotary Tool Engraving & Grinding Bits

AMSUO 20-Piece Diamond Grinding Needle Set — Rotary Tool Engraving & Grinding Bits

Twenty electroplated diamond shapes — from fine needle points to large cylinders. Ball, inverted cone, cylinder (bullnose/flat), cone and flame/bud profiles cut glass, ceramic, tile, stone and hardened steel far longer than abrasive stones. Factory-direct from a 20-year precision-tools manufacturer with ISO 9001 / 14001 / 45001 triple-system certification.

What's in the Box

Kit total: 20 pieces per manufacturer specification.

Key Features

• Electroplated diamond grit cuts glass, ceramic, tile, stone, and hardened steel
• 20 shapes from fine needle points to large cylinders for detail to bulk work
• Concentric mounting for smooth, chatter-free running
• Diamond coating far outlasts abrasive stones on hard materials
• Row-organized tray with custom clips

Recommended Applications

• Engraving glass, ceramics, and stone (trophy shops, glass studios)
• Sharpening carbide and hardened steel edges
• Shaping tile, porcelain, and composites for fabrication
• Craft, jewelry, and hobby engraving

Quality & Certification

Produced in an ISO 9001 / 14001 / 45001 triple-certified facility — every point is inspected before packing.

FAQ

Which rotary tools fit these needles?

These are standard 1/8" shank mounted points for rotary tools — check your collet size before ordering.

Can diamond needles be used wet or dry?

Both — use light pressure and let the diamond do the cutting; water cooling is recommended for production glass work.

Can this set be private-labeled?

Yes — custom branding, case colors and tray layouts are part of our OEM program.

Get a Quotation

Email [email protected] or message us on WhatsApp for wholesale pricing, samples and lead times.