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The SPI Z2536 is a caliper extender accessory designed to increase the measuring reach of standard 6 inch dial, vernier, and electronic calipers. At 36 inches overall length, it allows technicians and machinists to take large-span measurements that exceed the native range of a handheld caliper. The anodized finish provides corrosion resistance and surface durability for shop and field use. Accuracy is rated at plus or minus 0.003 inch, making it suitable for dimensional inspection and layout work requiring moderate precision. The Z2536 ships as a single piece and is ready to use without additional hardware.
This extender is intended for use in machine shops, fabrication facilities, quality control environments, and maintenance settings where oversized parts or assemblies require linear measurement beyond standard caliper capacity. It is a practical addition to any precision measurement toolkit when components exceed the 6 inch native jaw range of a standard caliper. The single-piece construction keeps setup straightforward, and the 36 inch reach covers a wide range of large-format workpieces.
Designed for use with 6 inch dial, vernier, and electronic calipers.
Attachment and use should follow the caliper manufacturer's guidelines for extender accessories. Ensure the caliper and extender connection points are clean and free of debris before attaching to maintain measurement accuracy. No power tools or special codes apply to this type of precision measurement accessory. Handle with care to avoid bending or dropping, which can affect calibration.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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