The twist drill bit is used with electrical drilling machine
such as partition curtains or floor curtains
3pcs x Screw
please kindly check your door gap before you purchase it
Convex Outside Diameter: 220mm
1mmx10mmx80mm Extended Tension Spring ,3.3Lbs Load Capacity,Grey 4pcs 75x69.7x47.5mm The twist drill bit isDescription: 1. Spring steel material,dual hook. 2. Tension spring can be used in many occasions, such as production and assembly, experiment, research and development, maintenance, etc.. 3. Spring in the international market occupies an important position, are widely used, computers, electronics, automotive, and other field. Specification: Product Name: Tension Spring Type: Dual hook Free Length: 80mm 3. 1" Spring Size( Outer Diameter): 10mm 0.