Type A bur is safety with left-hand twist. High safety when milling by hand. The instrument remains fixed and secure in the handpiece even at high speeds and with high cutting capacity. SGEA/GEA: Super coarse cross-cut bur/g ISO: 500 104 194225 070 - Maximum Speed: 30,000 rpm - ROUND CONICAL GRAIN Diameter: 070 - Shank: HANDPIECE - Application: DRESSING DRY GYPSUM - Packaging Quantity: 1