Fowler 52-240-101-1 Outside Inch Micrometer 0-1" Range Ratchet Thimble .0001" Graduation

The Fowler 52-240-101-1 is a precision 0–1" outside micrometer from the 52-240 series, designed for accurate measurement of length, width, and outside diameter in manufacturing, machining, and mechanical engineering applications. Built to meet or exceed U.S. Federal accuracy specifications, this micrometer delivers reliable, repeatable measurements in a durable, professional-grade package.

Key Features:

• Measuring Range: 0–1" with 0.0001" graduation intervals for highly precise readings
• Accuracy: ±0.00015" ensuring measurements you can trust
• Ratchet Thimble: Applies consistent, controlled force for repeatable readings across multiple operators
• Satin Chrome Finish: Microfine graduations on satin chrome sleeve and thimble reduce glare and resist rust
• Carbide-Tipped Measuring Faces: Hardened, precision-ground anvil and spindle with micro-lapped finish; 0.256" face diameter and 0.00003" flatness for accurate contact
• Hardened Spindle Thread: Ground and lapped for smooth movement and ultimate long-term accuracy
• Quick Zero Adjustment: Easy sleeve zero adjustment for fast recalibration in the field
• Positive Lever Locking Clamp: Locks measurements securely in place for confident reading and transfer
• Hammertone Blue Baked Enamel Frame: Durable, heat-insulated frame for comfortable extended use

Specifications:

• Range: 0–1"
• Graduation: 0.0001"
• Accuracy: ±0.00015"
• Flatness: 0.00003"
• Thimble Style: Ratchet
• Measuring Face Diameter: 0.256"

The Fowler 52-240-101-1 includes a wrench and fitted protective case. It is part of Fowler's 52-240 series, which spans a wide range of sizes to suit diverse measuring needs — all backed by Fowler High Precision's decades of expertise in inspection and measurement instrumentation.