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ENGINEERS' STRAIGHT EDGES
Standard features include:
Manufactured from high quality hardened steel
Available with either square or one 30°
bevelled edge
Finish ground on both sides and edges
Clearly marked supporting points on all sizes 900mm, and over
Light Section Straight Edges:
Manufactured to BS5204 Grade B
Suitable for general workshop use
310-12
310-36
METRIC / IMPERIAL: Light Section (Grade B) Straight Edges
Length
Width
Thickness
Square Edge
Price (£)
Bevel Edge
Price (£)
305mm / 12"
32mm / 1 1/4"
4.76mm / 3/16"
310-12
£95.83
F
310B-12
£114.03
F
610mm / 24"
41mm / 1 5/8"
6.35mm / 1/4"
310-24
£202.30
F
310B-24
£216.71
F
914mm /36"
51mm / 2"
7.94mm / 5/16"
310-36
£334.94
F
310B-36
£356.05
F
1219mm /48"
64mm / 2 1/2"
9.53mm / 3/8"
310-48
£560.44
F
310B-48
£597.74
F
1524mm /60"
76mm / 3"
11.11mm / 7/16"
310-60
£744.20
F
310B-60
£793.41
F
1829mm /72"
76mm / 3"
11.11mm / 7/16"
310-72
£911.67
F
310B-72
£962.66
F
Tolerances Tables for straight edges
GRADE A - 312 SERIES
COMBINED TOLERANCE
OF FLATNESS &
NOMINAL
STRAIGHTNESS OF
PARALLELISM OF
PARALLELISM OF
LENGTH
WORKING FACES
WORKING FACES
SIDE FACES
12"
0.00020"
0.00020"
0.00197"
24"
0.00024"
0.00024"
0.00236"
36"
0.00028"
0.00028"
0.00236"
48"
0.00039"
0.00039"
0.00315"
Tolerances Tables for straight edges
GRADE B - 310 SERIES
COMBINED TOLERANCE
OF FLATNESS &
NOMINAL
STRAIGHTNESS OF
PARALLELISM OF
PARALLELISM OF
LENGTH
WORKING FACES
WORKING FACES
SIDE FACES
12"
0.00039"
0.00039"
0.00276"
24"
0.00047"
0.00047"
0.00315"
36"
0.00055"
0.00055"
0.00354"
48"
0.00075"
0.00075"
0.00433"
60"
0.00098"
0.00098"
0.00551"
72"
0.00110"
0.00110"
0.00630"
