Moore and Wright 891M Adjustable Depth Micrometer

The Moore & Wright 891M Adjustable Depth Micrometer is a precision measuring instrument designed for accurate depth measurement in engineering and metalworking applications. This metric micrometer features a fixed depth rod with a 6.5mm diameter, providing reliable measurements from 0 to 25mm with 0.01mm graduation for exceptional accuracy in professional workshops and inspection environments.

Built to conform to BS 6468:1984, this depth micrometer demonstrates adherence to recognised British Standards for quality and precision. The tool is fitted with a speeder-type ratchet mechanism that enables rapid positioning whilst maintaining consistent measuring pressure, ensuring repeatable results across multiple measurements. A lock screw is incorporated to secure measurements once taken, preventing accidental adjustment during recording or inspection processes.

The 63.5mm (2.1/2in) base length provides stable support against the reference surface, making this micrometer particularly suitable for measuring slot depths, recess depths, and step heights in machined components. The fine 0.01mm resolution makes it ideal for precision engineering tasks, toolmaking, and quality control applications where dimensional accuracy is critical.

Features and Benefits:
• Speeder-type ratchet for rapid positioning and consistent measuring pressure
• Lock screw to secure measurements and prevent accidental adjustment
• Conforms to BS 6468:1984 British Standard for quality assurance
• 0.01mm resolution for precise depth measurements in engineering applications

Specifications:
Micrometer Type: Depth
Metric/Imperial: Metric
Min. Measurement (mm): 0
Max. Measurement (mm): 25
Graduation (mm): 0.01
Base Length: 63.5mm (2.1/2in)
Range: 0-25mm
Resolution: 0.01mm