Product specifications:Suitable for 65mm diameter trimming machine Fine adjustment accuracy:0.01mm Fine adjustment range:0-18mm Slotting range:18-168mm (from center to support) Product size:280x150x125mm Product Name:Trimming Machine Fine Adjustment Backbone Usage method: Zero scale of fine-tuning handle before use According to diameter of milling cutter installed, refer to scale markings Align scale markings with homework reference lines Backing mountain, aligning with edge of wooden board and locking it tightly Uniform translation operation for first cutting of product Rotate handle to adjust feed amount and lock it tightly Performing second cutting of product with uniform translation operation Repeated fine-tuning and cutting can produce required dimensions Colour:As Shown Material:Aluminum Alloy Package Contents: 1 x Slotted Bracket Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.