Mitutoyo Adjustable V-Blocks for Laser Scan Micrometers Mitutoyo offers this Adjustable V-Block specially designed for use with the following Mitutoyo Laser Scan Micrometer models... LSM-501S LSM-503S LSM-902 This Adjustable V-Block allows you to quickly and easily place a part in the V-blocks so the Laser Scan Micrometer can measure the stable, non-moving part. Included in the design is a slot in the V-block to allow the laser to be read, along with a crank handle for adjusting the height of the v-block for best measurement results. Specifications include... 4.17" Tall 1.57" Deep 1.97" Wide