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Cast Iron Prismatic or Triangular Straight Edges are used for trueing, spotting and reconditioning of dovetail guide-ways of Machine Tools, Slide and similar work pieces.

SALIENT FEATURES: 

  Made from close grained Cast Iron Castings conforming to Grade FG-220 of IS-210. Castings duly stress relieved.

  Provided with suitable M.S. handles at both the ends.

  Offered in two Grades of accuracies as under:

  Grade-1 : Having atleast 25 bearing spots in 25 x 25 mm area.

  Maximum error in specified Angle between working surfaces being within ±5'.

  Grade-2 : Having atleast 20 bearing spots in 25 x 25 mm area. Maximum error in specified Angle between working surfaces being within ±10'.

  Offered various sizes with various working Angles between working faces as shown in the table:

Length
Working Angles (in degree) & corresponding width of working faces (mm)
(mm)
30º
45º
50º
55º
60º
250
50
50
50
45
45
300
50
50
50
45
45
500
70
70
70
60
60
600
70
70
70
60
60
750
90
90
90
80
80
1000
110
110
110
100
100
1250
130
130
130
110
110
1500
160
160
160
130
130
2000
200
200
200
160
160
  Other sizes on request