Straight Edges

Pioneers in the industry, we offer cast iron straight edges, engineer's steel straight edges and prismatic straight edges from India.

Cast Iron Straight Edges

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We have gained vast expertise in offering a better-quality range of Cast Iron Straight Edges to our valuable clients. Clients can avail these cast iron straight edges at competitive price in the market. The bow shaped type is additionally featured with studs at the bottom for perfect balance and the hand scrapped surface is provided for comfortable handling which makes the product best among the others.

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Engineer's Steel Straight Edges

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We provide unmatched range of Engineer's Steel Straight Edges, in a wide range to our esteemed clients. Our range of engineer's steel straight edges is highly demanded in international market for its attributes like high tensile strength, durability and light weight and these edges are apt for numerous industries like Glass, fabrication and windmill etc. Clients can avail this engineer's steel straight edges at reasonable price in the market.

Dimensions L X B X H mm	Straightness Microns um	Parallelism Microns um
300 x 35 x 8	12	24
450 x 35 x 8	12	24
600 x 50 x 8	15	30
1000x 50 x 8	21	42
1200 x 55 x 10	25	50
1500 x 65 x 12	29	58
2000 x 65 x 12	37	74
2500 x 65 x 12	46	92
3000 x 85 x 18	54	108
4000 x 100 x 20	71	142
5000 x 100 x 20	87	174
6000 x 120 x 20	100	200

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Prismatic Straight Edges

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We offer quality Prismatic Straight 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.

Some of its unique features are:

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 computerised calibration certificate traceable to National Physical Laboratory (NPL, Govt of India) New Delhi

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

Length	Angle between working Surfaces (in Degrees)			Tolerance on Flatness of Working Surfaces
	30	45	60
Millimetre mm	Width of working surfaces mm			Microns um
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