The Proxxon Replacement Sanding Caps (No. 28989) are replacement abrasive sleeves for the Proxxon sanding caps carrier. Each pack contains 10 caps in two grits — 5 at 80 grit for coarser stock removal and shaping, and 5 at 150 grit for intermediate finishing — so you have both stages covered in a single purchase. Made from tough, consistent abrasive compound, they're ideal for surface and shape sanding, smoothing edges, inside curves, and hard-to-reach areas across a wide range of materials. The 3mm shank on the carrier fits any Proxxon Micromot collet or keyless chuck tool. Applications Furniture refinishing and surface prep Rust removal from steel and castings Shape sanding on wood and plastic Smoothing edges, inside curves, and tight areas Finishing on non-ferrous metals, leather, and welded joints Specifications Part Number: No. 28989 Grits included: 80 (×5) and 150 (×5) Carrier shank: 3mm (7/64") Quantity: 10 per pack (assorted) Materials: Wood, plastic, leather, non-ferrous metals, steel, welded joints, castings Works Well With Professional Rotary Tool IBS/E (No. 38481) — collet-based 100W Micromot tool for use with the sanding caps carrier Precision Rotary Tool FBS 115/E (No. 38472) — keyless chuck 100W Micromot tool Replacement Sanding Bands — 120 Grit (No. 28979) — drum-style sanding bands for the No. 28978 carrier Replacement Sanding Bands — 150 Grit (No. 28981) — drum-style sanding bands for the No. 28980 carrier Proxxon Belt Sander BS/E (No. 38536) — for larger flat surface sanding after detail cap work Proxxon Delta Sander OZI/E (No. 38520) — for corners and edges the sanding cap can’t reach 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. See our full return and refund policy. 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.