Comparison Sample Block Of Surface Roughness Level Gage

Product Detail

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Comparison Sample Block of Surface roughness Product Description

This set contains standards for seven most important maching methods in the prevalent "AA"

Value. These Surface Roughness is used to compare and determine the degree of the surface finish by comparision method and eye estimation or magnifying glass

All 27 speciments are calibrated in u" AA (Arithmetical Average) and in the metric equivalents um Ra.

Classify and rough degree parameter as table




Turning		Shaping		Vertical   milling		Plain      milling		Plain     grinding		External    grinding		Polishing
um	uin	um	uin	um	uin	um	uin	um	uin	um	uin	um	uin
6.3	250	6.3	250	6.3	250	6.3	250
3.2	125	3.2	125	3.2	125	3.2	125
1.6	63	1.6	63	1.6	63	1.6	63
0.8	32	0.8	32	0.8	32	0.8	32
								0.8	32	0.8	32
								0.4	16	0.4	16
								0.2	8	0.2	8	0.1	4
								0.1	4	0.1	4	0.05	2
												0.025	1