Diamond 257SPMDescriptionHead Diameter (mm): 2.3Head Length (mm): 5.0Grit: Medium An account is required to purchase on Trihawk. More info Create account Login SKU: 257SPM Categories: Gross Reduction & Spirals, Diamond BursRelated productsDiamond 001-022F Head Diameter (mm): 2.2Head Length (mm): 2.2Grit: Fine Diamond 225-016C Head Diameter (mm): 1.6Head Length (mm): 6.5Grit: Coarse Diamond 141-014C Head Diameter (mm): 1.4Head Length (mm): 8.0Grit: Coarse