2-3" Imperial Blade Micrometer - 3232 Series (Insize)

The 2-3" Imperial Blade Micrometer from Insize (3232 Series) is a precision measuring tool designed to gauge groove diameters on shafts and keyways with exceptional repeatability. Built for quick, confident measurements, its blade-style contact and non-rotating spindle ensure readings stay stable, even in tight grooves.

Designed for a wide audience—from machinists and engineers to technicians, tradespeople, and hobbyists—the micrometer includes setting standards to speed calibration (except 0-25mm). It handles measurements across a range up to 8 inches, making it versatile for most workshop tasks.

• Non-rotating spindle with ratchet stop: Delivers steady, repeatable readings by preventing spindle rotation and applying uniform force, even in tight grooves.
• High-precision 0.0001" graduations: Allows you to read groove diameters and keyways to one ten-thousandth of an inch for confident fits and consistent tolerances.
• Includes setting standards (except 0-25mm): Comes with reference standards so you can quickly verify accuracy and maintain traceable measurements across tasks.

With its durable blade design and precision mechanics, this micrometer helps you speed setup, reduce rework, and achieve reliable, repeatable results across common shaft and keyway sizes. The combination of a fine 0.0001" resolution, controlled measuring force, and ready-to-use setting standards makes it a practical choice for shop floors, production lines, and on-site service where accurate groove sizing matters for proper fit, performance, and longevity.