Features: 1. HIGH STRENGTH: Made of premium carbide with heat treatment and cold hardening, this spanner sleeve offers high strength with some flexibility and plasticity. 2. LONG LIFESPAN: With excellent properties like high hardness, strong strength and toughness, heat resistance, corrosion resistance, etc., this DC spanner sleeve will serve you for years. 3. STRONG CLAMPING FORCE: This collet spanner sleeve securely holds the tool in place, ensuring safety and efficiency during operation. 4. MULTI-PURPOSE USE: Suitable for a wide range of applications including drilling, boring, threading, turning, lathe machines and other machining operations this DC spanner sleeve has strong practical use and meets your various needs. 5. WIDE APPLICATION: Ideal for CNC lathes, machining centers, threading machines, drilling machines, milling machines and other industrial equipment. Specifications: Product type: Spanner sleeve Material: Carbide Packaging list: 1 x Spanner sleeve 1 x Storage box