Material and build Precision stainless steel construction for corrosion resistance and long service life. All measuring faces are heattreated (quenching) and surfaceground to maintain flatness and resist wear over repeated use. Measurement accuracy and readability Laserscribed graduations provide clear, permanent scale markings for consistent, accurate readings. Ground measuring planes combined with precise scale marking reduce cumulative error during repeated measurements. Easy operation and secure locking Thumb roll enables smooth, controlled sliding for quick positioning. Knurled locking screw secures the slider without slipping, so set measurements stay fixed during transfer or inspection. Fine adjustment (heavy duty series) Heavy duty models include a fineadjustment carriage to microfeed the slider for precise incremental movement and repeatable setups. Why this product solves problems Built for repeatable accuracy: hardened, ground contact surfaces and laseretched scales minimize wear and preserve calibration over time. Faster, more reliable measuring: thumb roll and knurled lock let you position and lock measurements quickly, reducing handling errors. Better control on heavyduty tasks: optional fineadjustment carriage prevents overshoot and lets you dial in exact dimensions for tighttolerance work. Typical applications Machining and metalworking: set and check part dimensions, verify shaft and bore sizes, or transfer measurements from fixtures to parts. Quality inspection and assembly: perform repeatable inprocess checks on production lines or bench inspections in QC labs. Workshop and hobby projects: accurate layout, fit checks, and component verification for woodworking, model making, and work. Key attributes at a glance Material: stainless steel Measuring faces: quenched and ground Scale: laserscribed graduations Controls: thumb roll, knurled locking screw Fine adjustment: carriage included on heavy duty series This design focuses on durability, readable markings, secure locking, and precise control where fine adjustment is required.