HR Series Lockable High-Resolution Micrometer Heads have 0.25 mm pitch threads (over 100 TPI), providing twice the sensitivity of standard SM Series Vernier Micrometer Heads. These fine threads allow 0.5 µm sensitivity with direct position readout in 5 µm graduations. They are recommended for applications requiring sensitive positioning, as well as accurate position readout. The HR-6 offers 6 mm of travel, while the HR-13 offers 13 mm of travel.

The HR Series Micrometer Heads have a novel thumbscrew locking mechanism that clamps a non-threaded portion of the screw from all sides. This stress-balanced design secures the position with negligible displacement during locking.

Lockable High Resolution Micrometers are Compatible with the Following Stages

461/462 Series ULTRAlign™ Precision Integrated Crossed-Roller Bearing Linear Stages
561/562 Series ULTRAlign™ Precision XYZ Positioning Stages
423 Series Extended Range Ball Bearing Linear Stages
426 Series Extended Platform Crossed-Roller Bearing Stages
Peg-Joining Linear Stages
Quick-Mount Linear Stages
Low-Profile Rotation Stages
Anti-Backlash Goniometric Rotation Stages