Mitutoyo 3-point micrometer sets
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Mitutoyo Holtest – 3-point inside micrometers - Accurate and user-independent inside diameter measurement for premium and economy models
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Mitutoyo's Holtest series of 3-point inside micrometers offer a reliable and easy-to-use solution for measuring inside diameters in various industries. The three-point self-centering design automatically centers the gauge on the centerline of the hole, resulting in a measurement that reflects the actual diameter of the hole rather than an estimated distance between two measuring points. This makes Holtest meters far more accurate and less user-dependent than traditional 2-point inside micrometers. The range includes both the premium Holtest models and the Holtest Economy variants, with equipment levels and material properties tailored to different application needs. The premium series Holtest models use carbide micro-lapped measuring faces, offering optimal wear resistance and a smooth measurement contact. A mechanical ratchet stop provides a constant measuring force, which improves repeatability and reduces measurement errors regardless of user experience. Holtest Economy models offer a more affordable way to take advantage of Mitutoyo's 3-point internal measurement. The Economy series retains the self-centering, standard mechanical ratchet stop measuring force and ease of use of the Holtest design, but typically uses hardened tool steel measuring faces instead of carbide. This makes the Economy series an ideal choice for workshops, maintenance and general quality control where accuracy is important but heavy-duty durability is unnecessary. Advantages of the Economy Series: - lower purchase price. - easy-to-use mechanical design without electronics. - ratchet stop guarantees uniform measuring force. - good dimensional accuracy and sufficient durability for lighter industrial use. Typical features of the group (all series): - 3-point self-centering measurement automatically measures the actual hole diameter. - Mechanical ratchet stop ensures constant measuring force and improves repeatability. - Accurate and easy to read scale, suitable for internal diameters of the precision class. - Suitable for both shallow and deep holes, including blind holes. - High quality Mitutoyo construction, designed for long life industrial use. - Available in a wide range of measuring ranges and as both single meters and set versions. - Versatile applications: machine shops, workshops, assembly, quality control, measuring laboratories. |