Aircraft Tool Supply 52-229-203 Fowler Economy Outside Micrometer, 2-3"

Fowler 52-229 series outside Vernier-scale micrometers have a choice of measuring range and a flat anvil/spindle pair for general purpose measuring. The Vernier scale has 0.0001" microfine graduation intervals on a satin chrome finish for precise readings. The positive locking nut on the spindle locks measurements in place for accurate readings and the zero adjustment on the sleeve ensures accurate measurements. The anvil/spindle pair have 0.256" diameter hardened, precision-ground, and micro-lapped carbide measuring faces with 0.00003" flatness and 0.00005" parallelism on 0 to 1" micrometers to provide accurate measurements.

Friction thimble with ratchet stop applies constant force for repeatability between users. Friction-style thimbles are suitable for one-handed operation and stop turning when the spindle comes into contact with the workpiece, providing constant force for consistent measurements between operators. The ratchet stop-thimble can be used independent of the friction thimble. It provides an audible sound and stops the spindle from turning when the spindle comes into contact with the workpiece, providing constant force for consistent measurements between operators.

The heat-insulated frame helps reduce temperature-related expansion or contraction, providing accurate measurements, and protects the operator's hands from heat. The micrometer includes a wrench and fitted case. Micrometers 2" and above include a standard.Specifications: 2-3" Range, .0001" Grads. Carbide tipped anvils.

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• Outside micrometer with choice of measuring range and flat anvil/spindle pair for general purpose measuring
• Vernier scale has 0.0001" graduation intervals for precise readings
• Hardened and precision-ground anvil and spindle have 0.256" diameter micro-lapped carbide measuring faces with 0.00005" parallelism on 0 to 1" micrometers and 0.00003" flatness for accurate measurements
• Friction-style with ratchet stop applies constant force for repeatability between users and is suitable for one-handed operation
• Heat-insulated frame helps reduce temperature-related expansion or contraction and isolates heat from the operator's hand

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