Accuracy and Precision: Each block in this set is crafted to provide exceptional precision with an accuracy ±20 arc seconds, ensuring meticulous measurements for critical engineering tasks. Versatile Tooling Applications: Ideal for diverse angle setups in tooling, production, and inspection environments. These blocks are hardened and precision ground to maintain durable and reliable performance under rigorous use. Enhanced Holding Features: Lightly magnetized to enhance part holding without compromising ease of handling. Each block measures 3'' in length and 1/4'' in thickness, designed for stability and ease of use in complex setups. Comprehensive Set: This ten-block set covers increments from 1 up to 30, providing a wide range of angle measurements for various applications. The set comes complete with a fitted case, available in either a sturdy plastic or classic wooden box for enhanced protection and portability. Color: As Shown Material: Alloy Steel Package Contents: 1*Angle Block Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.