Strong and highly efficiency adsorption: highly strength adsorption screws to slippage, more to work For Furniture RepairDIY ModificationAutomotive RepairIndustrial ManufacturingAppliance RepairMachine Repair highly hardnessed and durability: highly-frequency quenching, hardnessed up to HRC55, not easy to be deformed highly-frequency weldings: highly-frequency weldings refuses to manual weldings long service life Hardened steel forging rod head: highly heat steel forging highly hardnessed, good toughness, highly torqued, Manufacturer: Mekalero