Description:

Expand Length : 1540mm/60.6inch ; Spring OD : 54mm ; Material Width : 8mm ; Material Thickness : 0.8mm. Inner Mounting Type : Hook; Outer Mounting Type : Hook. This is the chrome housed spring that returns the quill to the top after you have completed drilling.Used to all kinds of vacuum cleaner coil spring, volume tube coil spring, safe coil spring and so on. Chemical Blackening, the performance of the product form oxide film, isolate the air, prevent rust. Pay attention to safe when installing springs. Do not loosen the wire of fixed springs!.