Engineer's Straight Edges Flat Section, Tool Maker's Straight Edges, Cylinderical Squares

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ENGINEER'S STRAIGHT EDGES (STEEL) FLAT SECTION

Model No. 3013

These Straight Edges are made of alloy Steel and are hardened and ground. The working Surfaces are hand scrapped. All finished surfaces are protected by protective coating and is supplied in a case.

ENGINEER'S STRAIGHT EDGES ( STEEL) FLAT SECTION				TOOL MAKER'S ( KNIFE EDGES ) STRAIGHT EDGES
Sizes inMM				As per IS:3512:66
Length	Width	Thickness	Accuracy mm	Length	Width	Thickness
300	40	6	0.003	100	40	10
450	40	8	0.003	150	40	10
600	50	8	0.004	300	60	12
900	50	8	0.005	500	80	15
1000	50	10	0.007
1200	60	10	0.007
1500	60	12	0.008
1800	65	12	0.008
2000	65	15s	0.010
3000	75	20	0.025

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TOOL MAKER'S (KNIFE EDGES ) STRAIGHT EDGES

Model No. 3014

These straight edges are being manufactured from 100mm to 500mm length, intended for very accurate work, and having one working edge, which is bevelled and very slightly rounded off. These straight edges are commonly known as "Knife Edge". Knife edges are manufactured from alloy Steel and are hardened and suitable heat treated to remove internal stresses. Hardeness 55 to 60 HRC.

Accuracies:

CAST IRON CUBES
All dimension in millimeters
Wength	Length	Height	Thicknesss
100	100	100	22
125	125	125	25
150	150	150	28
200	200	200	32
225	225	225	35
250	250	250	160

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CYLINDERICAL SQUARES (MASTER CYLINDER)

Model No. 3015

The Cylinderical Squares are the most suitable means of Checking Components for squereness by comparison methods.

MATERIAL : Cylinderical Squares are made of high quality alloy steel and suitably hardened and stabilized.

HARDNESS : The external surface of cylinderical squares have hardness of 700 HV.

FINISH : The external surface of Cylinderical Squares. are either lapped or have fine ground finish.

HANDLE : These are supplied with lifting handle.

Cylinderical Squares of 300mm length or above are of hollow section and less than 300mm length are of solid type.

CYLINDERICAL SOUARES ( MASTER CYLINDER )
Length	Outside	Straightness	Flatness	Squareness
75	50	0.0008	0.0008	0.001
150	65	0.001	0.001	0.0025
225	75	0.002	0.002	0.0035
300	85	0.0025	0.0025	0.005
450	110	0.0035	0.0035	0.006
600	125	0.005	0.005	0.007