product features: Two-in-one function, can draw lines, can measure depth, simple and convenient. Comes with a small wrench for replacing the blade. Stainless steel sliding rod laser scale, wear-resistant and durable. The fine-tuning level of this product is 0.2mm, and the measurement and marking are accurate .Materials: Aluminum Alloy, Brass, Stainless Steel Excavator Window: Fine Tuning Knob, Fine Tuning Lock Product Size: Blade Diameter: 12mm Marking Shank Size: 8mm x 217mm. Wrench size: 29mm*87mm Scoring range: 0-120mm Fine adjustment level: 0.2mm, product material: Blade material: aluminum alloy Scoring rod material: stainless steel Adjustment Handle Material: Brass Color: Silver Size: 22*6cm Delivery Quantity: 1 piece When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please dont hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it