The CR1A adapter can be used to secure select Thorlabs mounts to the CR1 Rotation stage. The adapter is equipped with four 6-32 taps, one 1/4"-20 tap, six 4-40 taps, eight 2-56 taps, and four #6 clearance holes The following list shows mounts that may be secured to the CR1:

• PM3 and PM4 Small and Large Clamping Arms
• PH Series Post Holders
• T12 Series 1/2" Mini Translators
• GN Series Goniometers
• Unpackaged Weight: 23.8 g