Standardization! To meet your needs.
The use of Cylinder Gauge enables an easy and precise
  Measurement of the large inner diameter of SPLINE.
Dial gauge is not furnished and supplied only on request.
  Suitable dial gauges are 17Z, 57B (0.01mm) and 15Z, 5F (0.001mm).

Specifications ; CC-1B Series
Model		Large diameter range (mm)	Effective measuring range (mm)	Wide range accuracy (?m)	Adjacent error (?m)	Repeated accuracy (?m)	Rod (mm)	Washer (mm)
CC-124B		23.5～26.0	1.2	5	2	2	24	0.5, 1.0
CC-126B		25.5～28.0	1.2	5	2	2	26	0.5, 1.0
CC-128B		27.5～30.0	1.2	5	2	2	28	0.5, 1.0
CC-130B		29.5～32.0	1.2	5	2	2	30	0.5, 1.0
CC-132B		31.5～34.0	1.2	5	2	2	32	0.5, 1.0
CC-134B		33.5～36.0	1.2	5	2	2	34	0.5, 1.0
CC-136B		35.5～38.0	1.2	5	2	2	36	0.5, 1.0
CC-138B		37.5～40.0	1.2	5	2	2	38	0.5, 1.0
CC-140B		39.5～42.0	1.2	5	2	2	40	0.5, 1.0
CC-142B		41.5～44.0	1.2	5	2	2	42	0.5, 1.0
CC-144B		43.5～46.0	1.2	5	2	2	44	0.5, 1.0
CC-146B		45.5～48.0	1.2	5	2	2	46	0.5, 1.0
Length below grip 150mm
Dimensions ; CC-1B Series

Specifications ; CC-2B Series
Model		Large diameter range (mm)	Effective measuring range (mm)	Wide range accuracy (?m)	Adjacent error (?m)	Repeated accuracy (?m)	Rod (mm)	Washer (mm)
CC-245B		44.5～50.5	1.2	5	2	2	45	0.5, 1.0, 2.0, 3.0
CC-250B		49.5～55.5	1.2	5	2	2	50	0.5, 1.0, 2.0, 3.0
CC-255B		54.5～60.5	1.2	5	2	2	55	0.5, 1.0, 2.0, 3.0
CC-260B		59.5～65.5	1.2	5	2	2	60	0.5, 1.0, 2.0, 3.0
CC-265B		64.5～70.5	1.2	5	2	2	65	0.5, 1.0, 2.0, 3.0
CC-270B		69.5～75.5	1.2	5	2	2	70	0.5, 1.0, 2.0, 3.0
CC-275B		74.5～80.5	1.2	5	2	2	75	0.5, 1.0, 2.0, 3.0
CC-280B		79.5～85.5	1.2	5	2	2	80	0.5, 1.0, 2.0, 3.0
Length below grip 150mm
Dimensions ; CC-2B Series