Dentcraft Whale Tails come in 4 tip widths; Ultra-thin, Thin, Standard, Wide, and Extra wide. The shafts are all rounded at the top to minimize lines and high spots. The rate of taper and flair is designed to torque evenly as possible for the best response and best feel. Reverse Handle Whale Tails are great for working behind braces in doors. These PDR push tools come in a variety of sizes with varying handles to provide easier identification.