This is a kind of premium milling cutting insert set, made of fine toughness and carbide material, can provide long service life. Fine impact toughness at low temperature, improve the surface gloss of cutting parts. It can reduce the grinding cost of the tool and improve the cutting efficiency. You can have a try. Features: These inserts are made of carbide material, high toughness and high hardness, anti-deformation and with high durability. Fine cutting effect, provides the best combination of sharpness and durability, cost-saving effect. Sharpening cutting edges, improve cutting efficiency and show perfect machining effect. Improve the surface gloss of cutting parts, anti-stick design, reduce friction and reduce loss. To maintain tight tolerances, unmatched performance. Comes with a complete set of clamping screws and a T-15 wrench for easy replacement and disassembly. Two sets optional, different shapes of inserts to install on different turning tools, you can choose according to your demands. Set A: Diamond (10 x 31 x 2.5mm) + Round (12mm Dia x 2.5mm Height) + Square (14 x 14 x 2mm) + M6 x 10 Screw + 2pcs M4 x 0.7mm Screw + T-15 Wrench. Set B: 2pcs Diamond (10 x 31 x 2.5mm) & (10 x 28 x 2.5mm) + 2pcs Round (12mm Dia x 2.5mm Height) & (9mm Dia x 1.9mm) + Square (14 x 14 x 2mm). +Square with radius (15*15*2.5mm)+2 M6*10 screws + 4 M4*0.7MM screws + T-15 wrench Specifications: Name: Milling Insert Set Material: Carbide Type: Set A, Set B (Optional) Item Size: 10*31*2.5mm Diamond: 10*31*2.5mm/0.39*1.22*0.10in 10*28*2.5mm Diamond: 10*28*2.5mm/0.39*1.10*0.10in 12mm Diameter Round: 12*12*2.5mm/0.47*0.47*0.10in 9mm Diameter Round: 9*9*1.9mm/0.35*0.35*0.07in 14mm Square: 14 * 14 * 2 mm / 0.55 * 0.55 * 0.08 in Square with radius: 15 * 15 * 2.5 mm / 0.59 * 0.59 * 0.10 in Storage box size: 135 * 55 * 15 mm / 5.31 * 2.17 * 0.59 in Item weight: Set A: 48 g / 1.69 ounce Set B: 61 g / 2.15 ounce Package size: 150 * 100 * 50 mm / 5.91 * 3.94 * 1.97 in Package weight: Set A: 52 g / 1.83 ounce Set B: 66 g / 2.33 ounce Packing list (set A): 1 * Diamond (10x31x2.5mm) 1 * Round (12 mm diameter * 2.5mm height) 1 * Square (14x14x2mm) 1 * M6 * 10 screw 2 * M4 * 0.7mm screws 1 * T-15 wrench OR Packing list (set B): 1 * Diamond (10x31x2.5mm) 1 * Diamond (10*28*2.5mm) 1 * Round (12mm diameter * 2.5mm height) 1 * Round (9mm diameter * 1.9mm) 1 * Square (14x14x2mm) 1 * Square with radius (15*15*2.5mm) 2 * M6 * 10 screw 4 * M4 * 0.7mm screws 1 * T-15 wrench