For Blocking Requiring Orientation, choose from these options. Other options are available upon request.
All of our Precision Loh Lens Blocks are machined from solid aluminum bar stock to exacting tolerances. Our Precision Loh blocks are available anodized in our standard blue or can be ordered in a variety of 7 different colors enabling date coding. Our blocks are also available with CNC machined Stainless Steel Coburn inserts. Our specially engineered inserts will not loosen with use. The different Loh Style Lens Blocks available are as follows: Standard Loh Block, Loh Block with Coburn inserts, Loh Block with a 3rd indicator alignment slot (see other option below), or our Loh Block with a 3rd indicator alignment slot and Coburn inserts.