Maillefer Protaper Retreat D3 Designed to be used in sequence to remove filling materials Three easily identified files are designed for the different needs of unfilling the canal before reshaping The D1 file has a working tip that facilitates initial penetration Each handle is no more than 11 mm for better visibility Sold in a 6 pack of individual or assorted sizes Length:22mm/18mm/16mm Size:D1,D2,D3 for Densply Protaper Reteatment file,made of special niti alooy with good resistance and elasticity, Use for removing gutta percha and fillings in root canal, Recommended speed is 150-300r/min,torque 2.5N.cm, Packaging:6 pcs/box,single or assorted.Total is 10boxes,60pcs. **For further product information, please contact Chat Support**