Description
A cylinder-shaped diamond bur for precision shaping, grinding, finishing, and engraving with Proxxon Micromot rotary tools. High-quality, long-wearing diamond burs with an even diamond coating over a stainless steel core — delivering uniform cutting performance across a wide range of hard materials. The cylinder profile provides consistent flat contact along straight surfaces, edges, and internal walls.
Specifications:
- Shape: cylinder
- Dimensions: 5/64" × 13/64" (approx. 2 × 5mm)
- Shank diameter: 2.35mm (3/32")
- Coating: even diamond over stainless steel core
Suitable materials:
- Glass and ceramics
- Porcelain
- Stones and semi-precious stones
- Non-ferrous metals
- Steel (including chrome-cobalt alloy)
Proxxon No. 28240
Other diamond bur shapes:
- Diamond Bur — Sphere 5/64", 2-Pack — ball shape for concave surfaces and internal radii
- Diamond Bur — Sphere 1/32", 2-Pack — smaller ball shape for fine detail work
- Diamond Bur — Lenticular Wheel 13/64" — disc shape for edge grinding and engraving
Works Well With:
- Professional Rotary Tool IBS/E — primary compatible Micromot rotary tool
- Proxxon AC Adapter NG 5/E with Electronic Speed Control (No. 38704) — variable speed bench power for controlled diamond grinding
- Proxxon AC Adapter NG 2/S (No. 38706) — basic bench power supply for Micromot tools
- Diamond Cut-Off Wheel 3/4" — diamond cutting disc for the same hard materials
- Diamond Cut-Off Wheel 1-1/2" — larger diamond cutting disc
- Complete Glass Engraving Set — GG 12 (No. 38635) — dedicated glass engraving tool and bit set
Returns can only be accepted for unused product in its original packaging. In addition to the returned item/items, a copy of the original packing slip or invoice is required. If proper paperwork is missing, PROXXON Inc. will not issue a credit. For warranty claims please call 1-877-776-9966. Please see our return and refund policy here.
California Residents Prop 65 Information
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.