Mitutoyo 122-103-10 | Blade Micrometer | Series 122 | Graduation 0.01mm | Accuracy ± 0.003mm | Range 50 to 75mm
Mitutoyo 122-103-10 Blade Micrometer, 50–75 mm – Type A, 0.01 mm Graduation
Mitutoyo 122-103-10 Blade Micrometer 50-75mm | KSA
SHORT PRODUCT SUMMARY
The Mitutoyo 122-103-10 blade micrometer measures groove and keyway diameters from 50–75 mm with 0.01 mm graduation and ±3 µm accuracy. Its Type A hardened steel blade and non-rotating spindle are designed for narrow features that standard micrometers cannot easily reach.
PRODUCT DESCRIPTION
The Mitutoyo 122-103-10 Series 122 blade micrometer is designed for measuring groove diameters, keyways, snap-ring grooves and other narrow features where a conventional micrometer anvil cannot reach effectively. Its 50–75 mm measuring range makes it suitable for dimensional inspection of shafts, pins and precision-turned components.
The micrometer uses a Type A hardened steel blade with a 0.75 mm thickness, allowing the measuring faces to enter narrow slots and grooves. The non-rotating spindle helps keep the blade aligned with the feature as the spindle closes, reducing unwanted twisting or scraping against the measured surface.
A ratchet stop provides a constant 3–8 N measuring force, helping produce consistent readings between repeated measurements and different operators. The measuring faces have 3 µm parallelism, while the instrument provides ±3 µm accuracy with a 0.01 mm graduation.
The Series 122 design also features a satin chrome finish on the thimble and sleeve, helping improve scale visibility under workshop lighting. The instrument is an analog mechanical micrometer with a metric scale and a 0.5 mm spindle pitch.
A standard bar is supplied for zero-setting, which is useful because the 122-103-10 starts at 50 mm rather than zero. The micrometer is supplied in a fitted case for storage and transport.
For a smaller measuring range, the Mitutoyo 122-102-10 covers 25–50 mm with the Series 122 blade-micrometer design.
KEY BENEFITS
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Reaches narrow features: Type A blade design fits groove and keyway applications across the 50–75 mm range.
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Suitable for precision inspection: ±3 µm accuracy and 0.01 mm graduation support dimensional checking.
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Non-rotating spindle: Helps keep the 0.75 mm blade aligned with the groove during measurement.
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Consistent measuring force: Ratchet stop provides a constant 3–8 N force.
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Hardened steel blade: Designed for regular dimensional inspection and groove measurement.
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Improved scale visibility: Satin chrome thimble and sleeve help reduce glare.
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Easy zero-setting: Supplied standard bar supports reference checking before measurement.
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Workshop-ready: Supplied in a fitted protective case.
For price and delivery information in Saudi Arabia, contact General Tech Shop at +966 53 132 1586 or mathews@generaltechsaudi.com.
WHO THIS PRODUCT IS BEST FOR
The Mitutoyo 122-103-10 is suitable for CNC machining shops, automotive component manufacturers, pump and valve repair workshops, maintenance teams and quality-control departments working with components in the 50–75 mm range.
It can be used for checking shaft grooves, keyways, snap-ring grooves, spline roots and other narrow machined features. It is particularly useful for machinists checking parts during production, inspectors performing first-off or final dimensional checks, and maintenance technicians measuring worn shafts before repair or replacement.
For applications outside the 50–75 mm range, select the appropriate Series 122 model based on the feature diameter.
HOW TO USE / HOW IT WORKS
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Clean the measuring blade and spindle surfaces before measurement.
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Check the micrometer against the supplied standard bar and verify the zero/reference setting.
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Open the micrometer slightly wider than the groove or keyway being measured.
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Position the blade and spindle squarely inside the feature.
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Turn the ratchet stop until the measuring mechanism reaches the intended constant force.
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Read the metric sleeve and thimble scale in 0.01 mm increments.
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Record the measurement while the micrometer remains correctly positioned on the part.
FREQUENTLY ASKED QUESTIONS
What is the Mitutoyo 122-103-10 used for?
It is a blade micrometer for measuring groove diameters, keyways, snap-ring grooves and other narrow features within its 50–75 mm measuring range.
What is the accuracy of the Mitutoyo 122-103-10?
The micrometer has ±3 µm accuracy with a 0.01 mm graduation. The measuring-face parallelism is specified as 3 µm.
What type of blade does the 122-103-10 use?
It uses a Type A hardened steel blade with a thickness of 0.75 mm.
Why does this micrometer have a non-rotating spindle?
The non-rotating spindle helps keep the blade aligned with the groove as the micrometer closes, which is important when measuring narrow slots and grooves.
What measuring force does the 122-103-10 use?
The ratchet stop provides a constant measuring force of approximately 3–8 N, helping improve measurement consistency.
Is a standard bar included?
Yes. A standard bar is supplied for zero-setting and reference checking because the measuring range starts at 50 mm.
Which Mitutoyo blade micrometer should I use for smaller measurements?
The 122-103-10 covers 50–75 mm. For features in the 25–50 mm range, the Mitutoyo 122-102-10 is the corresponding smaller-range Series 122 option.
How can I buy the Mitutoyo 122-103-10 in Saudi Arabia?
Contact General Tech Shop at +966 53 132 1586 or mathews@generaltechsaudi.com for product pricing and delivery information.
