50 pieces of 7.51-8mm spindle gauges, 0.001mm tolerance, precision bearing steel

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Discover our set of high-precision cylindrical gauge blocks, an indispensable tool for machining and quality control professionals. This complete set allows you to accurately check the location, diameter, and depth of holes, the width of grooves, and the center-to-center distances between bores.

Each block is made of premium GCR15 bearing steel, hardened and tempered at high temperature to achieve an exceptional hardness of 58 to 63 HRC, guaranteeing optimal wear resistance and longevity. For quick and error-free identification, each cylinder is clearly engraved with its corresponding dimension.

The product includes a total of **50 gauge blocks**, neatly arranged in an elegant and sturdy **wooden box**. This box keeps your tools perfectly organized, protected, and easy to find for everyday use.

**Detailed Specifications:**

* **Item Type:** Pin Gauge Set

* **Material:** GCR15 Bearing Steel

* **Diameter Range:** From 7.51 mm to 8.00 mm

* **Interval:** 0.01 mm (e.g., 7.51 - 7.52 - 7.53... up to 8.00)

* **Total Number of Pieces:** 50 gauges

* **Length of Each Gauge:** 50 mm

* **Accuracy:** +/- 0.001 mm

* **Hardness:** 58-63 HRC

These precision measuring instruments find wide application in various cutting-edge sectors such as electronic board and printed circuit board manufacturing, the molding industry, and precision mechanics. Acquire this reliable equipment for all your demanding dimensional control tasks.