花岗石直角尺

Granite square

用于零件、工作目机主轴及各种直角度之测量，250×160mm以上有圆孔加工，减轻重量，好取用。
For inspecting spindle and else squareness of work-pieces, have round role for size over 250×160mm to reduce weight so to tack easily.

花岗石V形块精度：

编号
No 		规格
Dimension
mm 		测量面与基准面垂直度
Perpendicularity between measuring and standard surface
(μm) 		测量面平面度直线度
flatness and beeline of the measuring surfaces (μm) 		基面平面度直线度
flatness and beeline of the standard surface(μm)
精度00
Grade00 		精度0
Grade0 		精度00
Grade00 		精度0
Grade0 		精度00
Grade00 		精度0
Grade0
107-2001
107-2002
107-2003
107-2004
107-2005
107-2006 		100×63×16
160×100×20
250×160×25
400×250×40
630×400×63
1000×630×80 		2
2
2.5
3.5
4.5
6 		4
4
5
7
9
12 		1
1
1
1
1.5
2.5 		1
2
2
2.5
3
5 		1
1
1
1
1.5
2.5 		1
2
2
2.5
3
5