Made from well chosed black granite stone,grade"0" ,grade"00" and grade"000" are valid.

If you have interesting in our products pls send us inquiry for quotations.we will quote you very competitive price with high qualitys, so as to have a good start of  the long business cooperation with your company.

 

Tpye (mm)	Flatness of working surface		Parallelism between V slot and bottom surface		Parallelism between V slo and side surface		Symmetry between V slot and end surface		Squareness between V slot and end surface		Squareness between V side and bottom surface		Height Difference of the v slot with a matched pair
	Precision grade ( μm)
	0	1	0	1	0	1	0	1	0	1	0	1	0	1
63 × 63 × 90°	1.5	3	4	8	4	8	8	16	8	8	4	8	5	10
100 × 100 × 90°	2	4	4	8	4	8	8	16	8	8	4	8	5	10
160 × 160 × 90°	2.5	5	5	10	5	10	10	20	10	10	5	10	6	12