No. 449 Series Micrometer Depth Gages with non-rotating blades
The 449 Series features non-rotating, blade-type rods approximately .045" thick x 1/8" wide (1.2 x 3.2 mm).
By holding the base in one hand, the blade can be turned with the fingers and positioned at any angle relative to the base. In operation, the blade does not turn, but moves perpendicularly only, permitting depth measurement of narrow shoulders without the blade rolling off. This is also ideal for slots and recesses as narrow as .045" (1.2 mm). Furnished with a 2 1/2" (63 mm) or a 4" (100 mm) base. |

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