1. Premium Carbon Steel Construction: The weather scraper puller tool is crafted from 45 carbon steel, featuring a robust metal body that has undergone a special heat treatment process. This results in high hardness and corrosion resistance. The forged and heattreated steel jaws ensure longlasting durability. Jaw opening: 1/16'1/16' (628mm); Outer diameter: 17/8' (48mm). 2. Size Information: Jaw opening: 1/16'1/16' (628mm); Outer diameter: 17/8' (48mm). The package includes 1 wiper arm and battery terminal bearing disassembly puller tool, and 1 PCS wiper arm disassembly tool (collar size: approximately 15.2mm). 3. MultiFunction Wiper Puller Tool: This versatile tool is ideal for disassembling wipers and battery terminal bearings. It can also remove stuck battery terminals and bolts that fit with conical splines on the windshield wiper arm. 4. Operation: Simply tighten the knurled cone, press the pliers under the cable clamp, turn the center screw, and lift the cable clamp from the terminal. The puller screw pad is designed to be installed at the top of the spline column for easy pulling.