OBISHI KEIKI - I-TYPE PRECISION SQUARE (High Precision)
Brand: Obishi -Japan
Model:
FG101, FG102, FG103, FG104, FG105, FG106, FG107, FG108, FG109, FG110,
FG201, FG202, FG203, FG204, FG205, FG206, FG207, FG208, FG209, FG210


Product Features:
 

• Accuracy is JIS standard Grades 1 and 2.
• It maintains high accuracy as a JIS standard designated high-grade square.
• Because it thick and balanced, stable measurement can be performed with it standing.
• Use for measurement of tools perpendicular, and squareness of parts attached using jigs, products squareness, etc
• It maintains enough accuracy for use as master in precision machinery as well as measuring instruments.
• All sizes are hardened.
• We can also manufacture similar products with special measurement and precision requirements.

 
 Technical Specification: 
 
 

Nominal Measurement	Measurement (H×L×W×tmm)	Grade 1		Grade 2		Mass (kg)
		Code NO.	squareness (μm)	Code NO.	squareness (μm)
50	50×40×15×5	FG101	±2.5	FG201	±6.0	0.04
75	75×50×18×5	FG102	±2.8	FG202	±6.5	0.08
100	100×70×25×8	FG103	±3.0	FG203	±7.0	0.2
150	150×100×30×8	FG104	±3.5	FG204	±8.0	0.3
200	200×130×35×11	FG105	±4.0	FG205	±9.0	0.7
300	300×200×40×15	FG106	±5.0	FG206	±11.0	1.8
500	500×300×55×20	FG107	±7.0	FG207	±15.0	6.5
600	600×350×60×23	FG108	±8.0	FG208	±17.0	9.0
750	750×400×65×25	FG109	±9.5	FG209	±20.0	11.5
1000	1000×500×70×28	FG110	±12.0	FG210	±25.0	18.0