4 Inch ACCU Lock Down Vise - Precision Milling Vise for Drill Press, 4" Jaw Width, Bench Clamp Clamping Vice - Heavy Duty , High Accuracy

【Heavy-Duty Construction】: Crafted from HT250 cast iron with exceptional toughness and high tensile strength; internal refine grinding treatment ensures smooth, steady operation without jamming; designed for long-lasting performance in demanding workshop environments 【Hardened Clamping Jaws】: Features thickened 45# steel jaws that are finely ground and hardened for superior wear resistance; fully enclosed design prevents debris entry, extending the service life of the vise; capable of securely holding various materials and shapes 【Precision Lead Screw】: Equipped with a larger thread pitch lead screw, offering smoother and more accurate adjustments; quenched and turned surface enhances wear resistance and ensures higher accuracy compared to standard screws; enables fine-tuning for optimal workpiece positioning 【Adjustable , Ergonomic Handle】: Universal joint handle made of ductile iron provides a strong and flexible grip; easily adjust gripping force for excellent clamping; designed for comfortable and efficient operation, reducing user fatigue during extended use 【Versatile Application】: Ideal for use with precision milling machines, drilling machines, and NC/CNC machine tools; suitable for finishing, filing, chiseling, assembly, and removal tasks; essential accessory for fitters and machinists seeking accurate workpiece holding solutions