- 3.0mm / 1.9mm diameters - Precision-machined and hand-formed from high-carbon stainless steel - Tips are then hardened and hand-polished to achieve smooth, scratch-resistant surfaces that produce accurate and smooth restorations every time - DuraLite® round handle features a large 9.5cm/3/8” diameter and is extremely lightweight for maximum tactile sensitivity **For further product information, please contact Chat Support**