-precision adjustable V-block gauge: Designed for positioning, clamping, and measuring cylindrical workpieces with enhanced accuracy. Adjustable structure design: Allows flexible angle and height adjustments to accommodate various sizes and shapes. Premium hardened steel construction: Offers excellent wear resistance and corrosion protection for industrial use. Stable V-groove support: Ensures secure and precise placement of round parts during inspection or machining. Widely used in professional, Manufacturer: JVDDI