4 X 4 Test Block

1. Ideal for accurate record keeping, our new laser etched alphanumeric grid provides columns 1-8 and rows A-H to make testing a breeze for even the most inexperienced tester.
2. Cross hairs have been laser etched over the entire grid to increase accuracy and visibility during testing, while the circular targets maximize the test area.
3. Meets ASTM Standards.

2 x 6 Test Block

Standard 2×6 test block for all daily calibration testing required by ASTM standards.