General description The AlwaysH 21Pcs 12mm Carbon Carbide Turning Tool Holder set includes everything you need for efficient lathe operations. This comprehensive kit features 21 pieces: 7 chuck bar holders, 7 carbide insert lathe turning tools, and 7 wrenches, making it ideal for various turning applications. Technical specifications Model: SCLCR1212H09, SCLCL1212H09, SDNCN1212H11, SDJCR1212H11, MGHER1212-2, SER1212H16, STGCR1212H11 Material: High-quality steel Tool holder size: 12mm Usage Suitable for turning bowls, sleeves, plugs, small parts, or dovetail rafters. Carbide tools facilitate rough machining and minimize physical wear. Other information High performance with high clamping force and impact resistance. Easy operation with quick clamping and turning mode; only one wrench is needed for blade and adjustment washer.