Thin, tough, and versatile. The Proxxon fiber cut-off discs are fiberglass-reinforced for near-unbreakable durability at high RPM — making them safe and effective for cutting alloyed steel, standard steel, stainless steel, non-ferrous metals, wood, and plastics with a Micromot rotary tool. At just 1/32" (0.8mm) thick, they produce a minimal kerf for clean, precise cuts with minimal material loss. What's Included 10 fiber cut-off discs, Ø 7/8" × 1/32" (22 × 0.8mm) 1 mandrel (arbor shaft 2.35mm) — ready to mount and use immediately Key Specifications Disc diameter: 7/8" (22mm) Disc thickness: 1/32" (0.8mm) Arbor/shank: 2.35mm — standard Micromot collet size Construction: Fiberglass-reinforced fiber — nearly unbreakable Quantity: 10 discs + 1 mandrel Part No.: 28808 Compatible Materials Steel: Standard, alloyed, and stainless steel Non-ferrous metals: Aluminum, brass, copper Wood: Hardwood, softwood, dowels, and thin stock Plastics: ABS, acrylic, PVC, and similar materials Frequently Asked Questions Is the mandrel included?Yes — one mandrel with a 2.35mm shank is included in the pack. No additional hardware needed to get started. What rotary tools are these compatible with?These discs fit any Micromot-compatible tool with a 2.35mm collet, including the IBS/E and IBS/A. Are these safe at high RPM?Yes — the fiberglass reinforcement makes these discs highly resistant to shattering, unlike unreinforced abrasive discs. Always use appropriate eye protection when cutting. What do I use after cutting to clean up the edge?Follow up with a corundum grinding bit for deburring, then the felt polishing bits for a finished surface. Works Well With Proxxon Professional Rotary Tool IBS/E — recommended corded Micromot host tool Proxxon Cordless Drill/Grinder IBS/A (Tool Only) — cordless option for flexible use Proxxon Corundum Grinding Bits — Wheel Shape, 3-Pack — deburr and clean up cut edges Proxxon Felt Polishing Bits — Disc Shape, 2-Pack (No. 28803) — final finishing after grinding Proxxon Felt Polishing Bits — Bullet Shape, 2-Pack (No. 28801) — finishing in recesses and contours Returns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. 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.
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