Suitable for vacuum cleaner drilling machines to ensure stable operation of the equipment. The outer diameter of the spring is 48mm, the width is 8mm, the thickness is 0.8mm, and the unfolded length is 1540mm. Precision processing ensures a perfect match. Made of stainless steel, it is wear-resistant and fatigue-resistant, extending the service life of the equipment. The spring sleeve provides stable pressure and elasticity to ensure smooth operation of the vacuum cleaner drilling machine and improve efficiency. 3pcs installed, meeting multi-point replacement or backup needs and reducing maintenance frequency., Manufacturer: Briny River