The cross dentition divides the instruments into individual elements arranged alternately (crossed). Short, granular chips. Smooth cutting with almost no pressure. E/EF = fine/extrafine cross dentition for acrylics and metal alloys. ISO: 500 104 141190 014 - Maximum Revolution: 100,000 rpm - ROUND-CYLINDRICAL GRAIN Diameter: 014 - Shank: HANDPIECE - Application: TO FINISH ACRYLIC, PLASTER, AND METAL ALLOYS - Packaging Quantity: 1