Brass rotary brushes for gentle but effective surface cleaning on a wide range of delicate and precision materials. Unlike steel wire brushes, brass bristles are acid resistant and electrically neutral — making these the safe choice for cleaning electronic components, precious metals, and non-ferrous surfaces without risk of contamination or damage. Specifications: Brush diameter: 5/16" (approx. 8mm) Shank diameter: 2.35mm (3/32") — fits standard Micromot collets Bristle material: brass Quantity: 2 brushes per pack Ideal for surface cleaning on: Brass and brass alloys Copper Precious and semi-precious metals Stainless steel Semi-precious stones Plastics and wood Electronic components (acid resistant & electrically neutral) Proxxon No. 28961 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 brushing Proxxon AC Adapter NG 2/S (No. 38706) — basic bench power supply for Micromot tools Tool Holder for Rotary Tools — mount your rotary tool hands-free for stationary brushing work Aluminum-Oxide Mounted Points — Cylinder Shape, 5-Pack (No. 28774) — follow up brushing with light grinding for surface prep 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.
