The Proxxon Tungsten Vanadium Cutters (No. 28725) are a 2-pack of round (ball) profile rotary cutters in tungsten vanadium steel for Proxxon Micromot tools. Available with 2.35mm or 3.0mm shanks. The full ball profile is the specialist choice for concave hollowing, bowl and dish shaping, and undercut work — the spherical cutting surface contacts the workpiece at a consistent radius regardless of the angle of approach, making it ideal for freehand carving of organic concave forms. Distinct from the cylinder round (cylindrical body with rounded end) and the flame (tapered oval) — the round/ball profile is a complete sphere, providing the most aggressive concave cutting action of the TV range. Head and shaft are machined from a single blank for maximum stability and concentricity. Key Features Round (ball) profile — full sphere for concave hollowing, bowl shaping, and undercut work Consistent radius contact — spherical surface cuts at the same radius at any approach angle; ideal for freehand organic carving Tungsten vanadium steel — broad material range: wood, NF metals, precious metals, plastics, plaster One-piece head and shaft — maximum stability, concentricity, and tool life Dual shank options — 2.35mm or 3.0mm to suit your collet 2-pack — two cutters per set Applications Concave hollowing and bowl shaping in wood Undercut work and relief carving Organic freehand carving in wood and NF metals Dish and spoon carving Precious metal concave shaping Plaster and plastics hollowing Specifications Part Number: No. 28725 Profile: Round (ball) Cutting diameter: ×6mm (15/64") Shank options: 2.35mm (3/32") or 3.0mm (7/64") Material: Tungsten vanadium steel Quantity: 2 per pack Materials cut: Hard and soft wood, NF metals, precious metals, plastics, plaster of Paris TV Cutter Profile Guide Cylinder (flat end) / No. 28722 — for slots, steps, and flat-bottomed pockets Cylinder Round / No. 28726 — for flat surface work with smooth end transitions Flame / No. 28724 — for contoured carving and concave shaping; most versatile profile Round (Ball) / No. 28725 (this cutter) — for concave hollowing, bowl shaping, and undercut work; full sphere for organic freehand carving Rounded Cone / No. 28723 — for chamfering, angled surfaces, and V-groove work Wheel / No. 28727 — for edge routing and decorative profiling Works Well With Professional Rotary Tool IBS/E (No. 38481) — collet-based 100W Micromot tool with 2.35mm and 3mm collets Precision Rotary Tool FBS 115/E (No. 38472) — keyless chuck Micromot tool accepting both shank sizes MICROMOT Steel Collet Set — 6-Piece (No. 28940) — includes 2.35mm and 3mm collets for this cutter TV Cutters — Flame (No. 28724) — complementary profile for contoured surface transitions TC Burrs — Ball Nose (No. 29060) — TC alternative for wood and GRP specialist hollowing Learn More Not sure which cutter is right for your material? Read our Proxxon Micromot Cutter Guide — TV Steel vs. TC Burrs vs. TC Milling Cutters for a complete breakdown of all three cutter families. 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.