Flexible Shaft Extension Chuck Adapter, Flexible Shaft Extension Chuck Key Adapter, Flexible Accessory Grinding Tool Product Features: Brand New, High Quality During flexible shaft operation, the steel wire core of the flexible shaft rotates at high speed within the flexible shaft sleeve, increasing friction and causing the inner wall of the flexible shaft to heat up. The higher the rotational speed, the more severe the damage to the flexible shaft and the more intense the heat generation, easily burning out the outer sleeve of the flexible shaft. Do not use the flexible shaft for polishing for extended periods; take a break every 10-15 minutes. Minimize the bending of the flexible shaft during use. Do not overload the shaft, as this will exacerbate friction and heat generation. After a period of use, apply a small amount of machine oil along the flexible shaft for lubrication and heat dissipation. After the flexible shaft is connected to the electric grinder, do not frequently disassemble it. Specifications: Material: Stainless steel + plastic Length: Approx. 105 cm / 41.33 inches Package List: 1 flexible shaft extension adapter Notes: 1. Please allow 1-2 cm error due to manual measurement. Please ensure you do not mind before placing an order. 2. Due to differences in different monitors, the picture may not reflect the actual color of the item.