Features • Enhanced Durability Design: Improved radius clamp accommodates R25-R30, ensuring long-lasting performance for all your woodworking needs • High-Strength Material: Crafted from high hardness aluminum alloy, this quick clamp offers exceptional strength and stability for reliable use • Quality Assurance for Longevity: Designed for extended use, this template tool guarantees quality, giving you peace of mind during your projects • User-Friendly Operation: Easily secure wood boards in place, streamlining your workflow and enabling precise processing with minimal effort • Multi-Purpose Functionality: Versatile radius clamp serves as a template, helping you effortlessly round corners for a professional finish on your boards Features: 1、Thickened cemented carbide measuring , wear？resistant and long service life 2、Accurate reading and exquisite workmanship, clear laser scale can provide accurate data 3、Measuring tool spindle built-in force limiting devices ensures accurate repeat readings 4、0 setting, the rotating threaded sleeve set to 0 5、Complete specifications, easy to carry 6、Available in 0-1in, 1-2in, 2-3in, 3in-4in and are equipped with calibrated standard and wrench Specification: Item Type: Micrometer Accuracy: 0.0001mm Standard: 0-1in, 1-2in, 2-3in, 3in-4in Size: Approx. 21 x 11.2cm / 8.3 x 4.4in 18.5 x 8.6cm / 7.3 x 3.4in 15.5 x 6.8cm / 6.1 x 2.7in 13.4 x 5.6cm / 5.3 x 2.2in Package List: 4 x Micrometer 3 x Accessories 1 x Wrench Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 4 x Micrometer 3 x Accessories 1 x Wrench