Features:

1. Multiple Holes: These parallel blocks feature 23 holes, with 5 tapped to 3/8-16 and the rest untapped, offering flexibility for a variety of applications.

2. High Accuracy: The blocks guarantee high accuracy with squareness of 0.0001", parallelism of +/- 0.0001", and height accuracy in pair of +/- 0.0001".

3. Quality Material: Made of hardened stainless steel, these blocks ensure long-lasting performance and resistance to wear and tear.

4. Convenient Set: The package includes two blocks, five socket head cap screws, and one hex key, everything you need in one convenient package.

5. Versatile Application: Due to their high precision and regular shape, these blocks are suitable for a wide range of measuring tasks.

Specifications:

- Material: Hardened Stainless Steel

- Squareness: 0.0001"

- Parallelism: +/- 0.0001"

- Height Accuracy in Pair: +/- 0.0001"

- Dimensions: 25-50-75mm

Package Included:

2 x Parallel Blocks

5 x Socket Head Cap Screws

1 x Hex Key