Item Type: X-Axis Linear Stage Model: HC25-A200 Table Size: Approx. 42 x 25mm / 1.7 x 1in Moving Direction: X axis 1 direction Body Material: Aluminum alloy (black anodized) Drive Mode: Manually rotate the knob to advance the gear drive (gear + rack) Sliding Track: Rack guide Rail Type: Dovetail groove type Number of Threaded Mounting Holes on the Countertop: 6 Threaded Mounting Hole Diameter: Approx. 4mm / 0.2in Threaded Mounting Hole Depth: Approx. 6mm / 0.2in Horizontal Load Resistance: 29.4N3Kgf) Length: Approx. 200mm / 7.9in Moving Stroke: Approx. 90mm / 3.5in Minimum Scale: 0.01mm Straightness: 0.03mm Scope of Application: Optical equipment, measuring instruments, semiconductor manufacturing equipment, testing machines, microscopes, photographic equipment, handling machines, processing machines, printing machines and others Package List 1 x X-Axis Linear Stage 1Main body is made of aluminum alloy material with good quality, which is light weight 2Strong, frictionresistant and silent, possess scratchresistant, dropresistant, and corrosionresistant 3Gear rotation handle control, dovetail groove type guide rail, come with high accuracy, smoothness, high load resistance, and stable movement 4Xaxis linear stage provide R angle protection, which guarantee safety 5Equipped with gear + rack type knob, you can manually rotate the knob to advance the gear drive