Description: Adjustable Accuracy: This Drill Press Stand features two adjustment knobs, a on the top and the other on the bottom; the tighter the knob, the higher the accuracy of drillingFixed Travel Knob: The scale ruler comes with a fixed travel knob for consistent drilling depth, ensuring accurate and repeatable resultsHeight Adjustment: No need for a wrench to adjust the height of this machine, simply tighten by hand using the L shaped handle for quick and effortless workingMultifunctional: The clamping range is 38-43mm; This Floor Drill Press Stand can be paired with vise grips and electric drill to perform various tasks such as grinding, cutting, drilling, and polishing on different materials. Please note that it is unsuitable for lithium electric drillAdjustable Stand Height: Depending on your work situation, you can adjust the height of this stand according to your needs Size Chart: About 40cmx22.5cmx15.7cm/15.7inchx8.85inchx6.18inch Package Includes: 1 Floor Drill Press Stand Note: Please allow slightly errors 1-2cm differences due to manual measurement.