75-100mm Outside Micrometer with Carbide Faces, Locking Clamp and Ratchet Stop

Achieve repeatable, high-precision external measurements with the SG 75-100mm outside micrometer. Designed for rapid checks of small gaps and external dimensions, this tool delivers reliable readings in tight tolerances across metalworking, aerospace, and automotive applications.

Carbide-tipped measuring faces provide exceptional wear resistance, extending life when measuring harder materials and reducing the need for frequent recalibration. The sturdy metallic frame offers rigid stability, ensuring readings stay consistent across repeated use.

Key features include a locking clamp to hold the measurement steady for marking or transfer, and a ratchet stop that applies uniform measuring pressure. This combination minimizes reading variation due to operator force, so you get dependable results every time.

Why it matters

• Wide 75–100 mm range with a tight 0.01 mm (0.001") least count for fine detail in part inspection.
• Carbide faces resist wear when contacting harder workpieces, preserving accuracy longer than standard steel faces.
• Locking clamp and ratchet stop promote consistent readings and simple, repeatable use in busy shops.
• Durable metal construction with a protective finish that stands up to daily workshop use.

Specifications at a glance

• Model: SG 75-100mm
• Material: Metal
• Least count: 0.01 mm / 0.001"
• Measuring range: 75–100 mm
• Carbide faces: Yes
• Locking clamp: Yes
• Ratchet stop: Yes
• Dimension (approx): 21.5 cm × 10 cm × 1.5 cm
• Packaging dimension (approx): 22.5 cm × 11.5 cm × 3.5 cm

What you get

This listing is for one item. The micrometer arrives in the compact protective case shown in the images, designed to keep the tool secure and ready for transport or storage. Please note: actual color may vary slightly due to lighting and monitor settings.

Usage tips

• Clean the measuring surfaces before use to ensure accurate contact readings.
• Place the anvil and spindle on the outside diameter of the part and gently rotate the thimble until contact is felt.
• Use the ratchet stop to apply consistent pressure, then read the vernier scale for the measurement.
• Engage the locking clamp to fix the measurement when transferring readings or recording data.

Care and maintenance

• Wipe clean after use; avoid exposing the tool to moisture for extended periods.
• Store in its protective case to prevent nicks and corrosion of the carbide faces.
• Periodic calibration checks are recommended to maintain accuracy over time.