Steel Setting Rings

For zero setting of inside micrometers, three pointsinternal micrometers and bore gages
Material: GCr15. The hardness of the measuring surface is greater than 60HRC.
Size difference (difference between the ordered size andthe size marked on the setting ring when supplied):For example, the ordered size is 10.00mm,the size marked on the setting ring when suppliedmay be 10.002mm

Non-standard calibrated plain ring gauges can be ordered according to the requirements of users.
Customized size go-nogo plain ring gauges can be provided upon request.
Tolerance Direction:
Go – Unilateral (one way) minus tolerance.
NoGo – Unilateral (one way) plus tolerance.
Master – Bilateral (split) tolerance.

Diameter	Accuracy	Roundness	Size Difference
≥1.00mm-30.00mm	±1.0μm	0.5μm	±2.0μm
≥30.00mm-80.00mm	±1.0μm	0.5μm	±2.0μm
≥80.00mm-150.00mm	±1.5μm	0.8μm	±2.0μm
≥150.00mm-200.00mm	±2.0μm	1.0μm	±3.0μm
≥200.00mm-300.00mm	±3.0μm	2.5μm	±6.0μm

Diameter	Accuracy	Roundness	Size Difference	Grade
＞0.04"-0.825"	100μin	50μin	±80μin	Z
＞0.825"-1.510"	120μin	60μin	±80μin	Z
＞1.510"-2.510"	160μin	80μin	±80μin	Z
＞2.510"-4.510"	200μin	100μin	±80μin	Z
＞4.510"-6.510"	250μin	125μin	±80μin	Z
＞6.510"-9.010"	320μin	160μin	±120μin	Z
＞9.010"-12.010"	400μin	200μin	±240μin	Z
Diameter	Accuracy	Roundness	Size Difference	Grade
＞0.04"-0.825"	70μin	35μin	±80μin	Y
＞0.825"-1.510"	90μin	45μin	±80μin	Y
＞1.510"-2.510"	120μin	60μin	±80μin	Y
＞2.510"-4.510"	150μin	75μin	±80μin	Y
＞4.510"-6.510"	190μin	95μin	±80μin	Y
＞6.510"-9.010"	240μin	120μin	±120μin	Y
＞9.010"-12.010"	300μin	150μin	±240μin	Y
Diameter	Accuracy	Roundness	Size Difference	Grade
＞0.04"-0.825"	/	/	/	/
＞0.825"-1.510"	/	/	/	/
＞1.510"-2.510"	80μin	40μin	±80μin	X
＞2.510"-4.510"	100μin	50μin	±80μin	X
＞4.510"-6.510"	130μin	65μin	±80μin	X
＞6.510"-9.010"	160μin	80μin	±120μin	X
＞9.010"-12.010"	200μin	100μin	±240μin	X

Steel Setting Rings

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