Ball Material: Stainless Steel with sphericity better than 0.00005".

Retroreflector Apex: positioned within either .0005" or .0001" of the center of the ball as specified.

Retroreflector Mirror Coating: Protected silver.

Cat. No.

Ball Diameter (Inch)

Retroreflector Clear Aperture (Inch)

Centering (Inch)

Weight (grams)

Diagrams

BMR - 1.5-1

1.50"

1.00"

within .0001"

168

Click Here

BMR - 1.5-5

1.50"

1.00"

within .0005"

BMR - 0.875-1

0.875"

0.50"

within .0001"

32

Click Here

BMR - 0.875-5

0.875"

0.50"

within .0005"

BMR - 0.5-1

0.5"

0.29"

within .0001"

6

Click Here

BMR - 0.5-5

0.5"

0.29"

within .0005"