How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Fowler 52-401-204-1 Outside Micrometer 12 to 16 in 0.001 in

$299.99 USD

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✓ 30-day returns on every item — return policy

ConditionSurplus - Untested MPN52-401-204-1 Stock #0426-01391

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

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The Fowler 52-401-204-1 is a large-range interchangeable anvil outside micrometer covering 12 to 16 inches in one-inch increments. Made in Japan, the tool features Fowler's signature hammertone blue baked enamel frame and is supplied complete with interchangeable anvils, setting standards for each inch of range, a wrench, and a fitted hardwood case. Graduation is 0.001 inch on a satin chrome sleeve, with microfine markings for clear readability. The spindle thread is hardened and precision ground with a microlap finish, and measuring faces are carbide tipped for wear resistance. A positive lever locking clamp maintains accurate settings, and the ratchet stop ensures consistent measuring force for repeatable readings. The tapered bushing design on the interchangeable anvils allows rapid and precise anvil changes without tools. Each anvil includes an adjusting collar to set the overall measurement dimension accurately. This micrometer is suited to machine shops, tool rooms, inspection departments, and production environments where large-diameter workpieces require precise outside dimension measurement across a wide range without purchasing multiple individual micrometers. Part number 52-401-204-1 corresponds to the 12-16 inch model in Fowler's 52-401 interchangeable anvil series. The fitted wooden case includes dedicated slots for each anvil, standard, and wrench, keeping the complete set organized and protected during storage and transport.

Stock # 0426-01391

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.