Features: *Our carbide cutter inserts are easy to use and suitable for both experienced carpenters and beginners. *You'll receive 12 pieces cutters in 4 different shapes (square, diamond, and 2 round shapes) to meet all your woodworking needs. *Our cutter inserts are solid, sturdy, and long-lasting, providing you with a reliable tool for years to come. *Simply rotate the tip to obtain a fresh and clean cutting edge, ensuring your cutter inserts stay effective for longer periods of time. *Our cutter inserts are perfect for hollowing out, trimming curve surfaces, and decorating details, making them a must-have for any woodworking enthusiast. Specifications: *Dimensions: Squares (11 x 11 mm/ 0.43 x 0.43 inches) Diamond shapes (10 x 30 mm/ 0.39 x 1.18 inches) Round shapes (12 x 2.5 mm/ 0.47 x 0.1 inches) Round shapes 8.9 x 1.85 mm/ 0.35 x 0.07 inches) *Colours:Silver *Material:Carbide Package Included: 3PCS Squares (11 x 11mm/ 0.43 x 0.43 inch) 3PCS Diamond shapes (10 x 30mm/ 0.39 x 1.18 inch) 3PCS Round shapes (12 x 2.5mm/ 0.47 x 0.1 inch) 3PCS Round shapes (8.9 x 1.85mm/ 0.35 x 0.07 inch) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.