Prismatic Straight Triangular Edges -review|Gokul Traders

PRISMATIC (TRIANGULAR) STRAIGHT EDGES

Prismatic Straight Triangular Edges that are used for checking angle and flatness of machine tools dovetailed guide ways, fixtures and slides. Triangular straight edge, two faces are scrapped and angle between the scrapped faces (30 or 45 or 60 Degree) is accurately processed. The third side is painted and recessed for weight reduction in the bigger

Prismatic Straight Triangular Edges that are used for checking angle and flatness of machine tools dovetailed guide ways, fixtures and slides. Triangular straight edge, two faces are scrapped and angle between the scrapped faces (30 or 45 or 60 Degree) is accurately processed. The third side is painted and recessed for weight reduction in the bigger sizes.

Standard Size and accuracy of Luthra Triangular Straight Edges as per IS : 8823-1978, Grade-1:

Length (mm)	Angle between working Surfaces (in Degrees)			Tolerance on Flatness ofWorking Surfaces
	30	45	60	Microns (um)
	Width of working surfaces (mm)
500	70	70	60	4
750	90	90	80	6
1000	110	110	100	8
1250	130	130	110	13
1500	130	130	110	13
2000	130	130	110	16

Features Of Prismatic Straight Triangular Edges

Luthra cast iron Prismatic Straight Edges are made of good quality closed grain cast iron strictly as per IS 210:1993 confirming to Grade FG-220.Castings are stress relieved either by natural ageing or by artificial seasoning.
Working surfaces are finished by hand scrapping to desired accuracy as per IS 8823:1978.
Provided with suitable M.S. handles on both end for easy lifting.
Offered in sizes with various working angles between working faces as shown in the table.
Prismatic Straight edges are supplied with computerized calibration certificate traceable to National Physical Laboratory (NPL, Govt of India) New Delhi.