The INSIZE 1129-300 Digital Deep Hole Inside Groove Caliper is a professional-grade measuring instrument specially developed for measuring internal grooves located deep inside holes, bores, cylinders, and complex components. Unlike standard groove calipers, this model features an extended measuring design that allows users to reach deep recessed areas and obtain accurate dimensional measurements.
Manufactured from high-quality stainless steel, the INSIZE 1129-300 provides excellent durability, corrosion resistance, and long service life in demanding industrial environments. The rigid construction ensures stable measurement performance, while the precision-engineered groove measuring jaws provide accurate contact with internal groove surfaces.
With a 20–300 mm measuring range, this digital deep hole groove caliper is suitable for inspecting medium to large components used in automotive, aerospace, mechanical engineering, and CNC machining industries. The 0.01 mm / 0.0005" resolution ensures precise measurement capability for critical applications requiring high accuracy.
The INSIZE 1129-300 features a clear digital LCD display that allows quick and easy reading of measurement values. The electronic display eliminates manual reading errors and improves inspection efficiency. Functions such as ON/OFF, zero setting, and mm/inch conversion provide convenient operation for different measurement requirements.
The extended measuring jaws of this deep hole inside groove caliper are designed to access difficult-to-reach internal features such as deep grooves, retaining ring grooves, bearing seats, and recessed sections. This makes it an ideal instrument for quality inspection departments, tool rooms, and production environments.
The INSIZE 1129-300 Digital Deep Hole Inside Groove Caliper delivers accuracy, versatility, and durability, making it a valuable measuring solution for professionals working with precision-machined components.
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