37-12 Caliper, Inside, 12" Size and Capacity, Flat Leg 50250

Starrett 37 Series Inside Calipers feature lock-joint transfer type calipers with fine-adjustment. One of the handiest and most versatile calipers ever made, Starrett Lock-Joint Transfer Calipers feature a transfer arm, a fine-adjustment screw, and a locing joint. Legs are made from a high-grade steel, rugged in construction, and well-finished.Caliper size and capacity is 12". 12"/300mm (Inside).

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  • Once legs have been set to approximate size and joint locked, final adjustment is made by a few turns of the knurled adjusting nut
  • Joint can be quickly and firmly locked by a partial turn of the large knurled disc
  • Ruggedly constructed legs from highgrade steel and are well-shaped and nicely finished
  • Spring washer under the disc maintains proper tension of legs when joint is loosened
  • Transfer arm
  • Transfer arm allows transfer measurements from places where it is necessary to move the legs after they have been set to size
  • Fine-adjustment screw
  • Adjusting screw permits close adjustment for fine measurements
  • Locking joint


  • Type: Inside
  • Size and Approximate Capacity (in): 12"
  • Size and Approximate Capacity (mm): 300mm
  • Joint Type: Lock Joint
  • Leg Style: Flat Leg