Features • Reliable Replacement Base: Designed specifically for depth measurement, ensuring a stable structure for accurate readings during your projects • Precision in Measurement: The hardened and ground guarantees smooth , providing you with measurements every time • Secure Clamping Mechanism: Features a threaded knob for dependable clamping, ensuring that your setup remains stable and secure without slipping • Premium Steel Construction: Crafted from high-quality stainl steel, this base is resistant to wear and temperature changes, ensuring long-lasting durability • Versatile Extension Rods Included: Comes with 3 extension rods (0-10mm, 10-20mm, 20-30mm) to accommodate various depth measurements for enhanced versatility Features: 1、Replacement Base: The base is used for depth measurement dimension with depth dial indicator, with and stable structure. 2、Smoothly : The base is hardened and ground, provides smoothly , ensuring accurate measurement. 3、Securely Clamping: The base uses threaded knob, the clamping is tightened and stable, not easy to fall off, reliable for usage. 4、Stainl Steel Material: Made of premium stainl steel, the base is resistant to , and temperature, has long last durability. 5、3 Extension Rods: The base comes with 3 extension rods of different specifications, which are 0？10mm, 10？20mm, 20？30mm. Specification: Item Type: Depth Dial Indicator Base Material: Stainl steel Clamping Hole Diameter: Approx.8mm/0.3in Extension Rod Specification: Approx.0-10mm/0-0.4in, 10-20mm/0.4-0.8in , 20-30mm/0.8-1.2in Package List: 1 x Depth Dial Indicator Base 3 x Extension Rod 1 x Storage Box Note: Match the appropriate size model before use. Package List 1 x Depth Dial Indicator Base 3 x Extension Rod 1 x Storage Box