Eberle Fuehlerlehrenstahl Eberle Fuehlerlehrenstahl Produkte

Benefits at a glance:

  • best thickness and width tolerances
  • optically identical surfaces for all thicknesses
  • optimum edge geometry
  • well-stocked warehouses throughout the world, flexible delivery of small quantities

Feeler Gauge Steel

Absolute precision, a full range of different thicknesses and a consistently uniform surface finish – exactly what manufacturers of feeler gauges in the tools and testing equipment industries expect from their precision strip steel. We also supply feeler gauge steel for gauge strips, measuring tapes and measuring foils and shims in all thicknesses required. Optimum edge geometry and the flexibility to draw from stocks around the world including small quantities – all this makes us the supplier of choice. Speak to us if you would like to know more.

Parameters Recommendation
Thickness tolerance T2 – T4
Tensile strength range M
Flatness class 2
Surface white polished
Edges t < 0,10 mm [.0039 in]: deburred
t ≥ 0,10 mm [.0039 in]: rounded
Grade Eberle 18
Thickness t (in) Tolerances ± in
T1 T2 T3 T4 T5
.0008 ≤ t < .0016 .00016 .00012 .00008 .00006
.0016 ≤ t < .0025 .00020 .00016 .00012 .00008
.0025 ≤ t < .0039 .00024 .00020 .00016 .00012 .00008
.0039 ≤ t < .0049 .00028 .00020 .00016 .00012 .00008
.0049 ≤ t < .0063 .00035 .00024 .00020 .00016 .00012
.0063 ≤ t < .0079 .00039 .00028 .00020 .00016 .00012
.0079 ≤ t < .0098 .00043 .00031 .00024 .00016 .00012
.0098 ≤ t < .0124 .00051 .00035 .00028 .00020 .00016
.0124 ≤ t < .0157 .00059 .00043 .00031 .00024 .00016
.0157 ≤ t < .0197 .00067 .00047 .00035 .00024 .00016
.0197 ≤ t < .0248 .00079 .00055 .00039 .00028 .00020
.0248 ≤ t < .0315 .00091 .00067 .00047 .00031 .00024
.0315 ≤ t < .0394 .00106 .00075 .00051 .00035 .00028
.0394 ≤ t < .0492 .00134 .00094 .00067 .00047 .00031
.0492 ≤ t < .0630 .00154 .00110 .00079
.0630 ≤ t < .0689 .00181 .00130 .00091
Thickness t (in) Width w (in) Tolerances ± in
B1 B2 B3
t < .0098 w < .79 .003 .002 .001
.79 ≤ w < 1.97 .004 .003 .002
1.97 ≤ w < 4.92 .006 .004 .003
w ≥ 4.92 .008 .006 .004
.0098 ≤ t < .0197 w < .79 .004 .003 .002
.79 ≤ w < 1.97 .006 .004 .003
1.97 ≤ w < 4.92 .008 .006 .004
w ≥ 4.92 .010 .008 .006
.0197 ≤ t < .0394 w < .79 .006 .004 .003
.79 ≤ w < 1.97 .008 .006 .004
1.97 ≤ w < 4.92 .010 .008 .006
w ≥ 4.92 .012 .010 .006
.0394 ≤ t < .0630 w < .79 .008 .006 .004
.79 ≤ w < 1.97 .010 .008 .006
1.97 ≤ w < 4.92 .012 .010 .006
w ≥ 4.92 .014 .010 .008
.0630 ≤ t ≦ .0689 w < .79 .010 .008 .006
.79 ≤ w < 1.97 .012 .008 .006
1.97 ≤ w < 4.92 .014 .012 .008
w ≥ 4.92 .016 .012 .008

Available in white, blue and yellow

Surface Roughness

Thickness t (in) Roughness (nach DIN EN ISO 4287 : 1998)
Class 1 Class 2 Class 3
t ≤ .0197 Ra ≦ 11.8 µin
Rt ≦ 118 µin
Ra ≦ 9.8 µin
Rt ≦ 98 µin
Ra ≦ 5.1 µin
Rt ≦ 59 µin
.0197 < t ≤ .0276 Ra ≦ 7.9 µin
Rt ≦ 79 µin
.0276 < t ≤ .0394 Ra ≦ 13.8 µin
Rt ≦ 138 µin
.0394 < t ≤ .0689 Ra ≦ 15.7 µin
Rt ≦ 157 µin
Ra ≦ 13.8 µin
Rt ≦ 138 µin
Ra ≦ 11.8 µin
Rt ≦ 118 µin
Thickness t (in) Tensile Strength MPa Eberle Tolerance +/-
Range L Range M Range H
.0008 ≤ t < .0039 HV630 HV25
.0039 ≤ t < .0049 1800 2100 2300 50
.0049 ≤ t < .0069 1800 2050 2250 50
.0069 ≤ t < .0089 1750 2000 2200 50
.0089 ≤ t < .0108 1750 1950 2200 50
.0108 ≤ t < .0148 1700 1900 2150 50
.0148 ≤ t < .0167 1650 1850 2100 50
.0167 ≤ t < .0187 1600 1800 2050 50
.0187 ≤ t < .0207 1550 1750 2000 50
.0207 ≤ t < .0246 1550 1750 2000 50
.0246 ≤ t < .0285 1500 1700 1950 50
.0285 ≤ t < .0325 1500 1700 1950 50
.0325 ≤ t < .0364 1450 1650 1900 50
.0364 ≤ t < .0404 1450 1650 1900 50
.0404 ≤ t < .0453 1450 1650 1900 50
.0453 ≤ t < .0492 1400 1600 1850 50
.0492 ≤ t < .0531 1400 1600 1850 50
.0531 ≤ t < .0620 1400 1600 1850 50
.0620 ≤ t ≤ .0689 1350 1550 1800 50
Thickness t in Flatness deviation P
Class 1 Class 2 Class 3 Class 4
.0008 ≦ t < .0039 P60 P50 P40 P30
.0039 ≦ t < .0079 P50 P40 P30 P20
.0079 ≦ t < .0138 P45 P35 P25 P15
.0138 ≦ t < .0197 P40 P30 P20 P10
.0197 ≦ t ≦ .0689 P35 P25 P15 P10

P15 means maximum flatness deviation of .0015 in per 1 in strip width.

Strip width w (in) Measured lenght (ft) Class 3 (in) Class 4 (in) Class 5 (in)
w < .591 1.6 .063 .031 .024
.591 ≤ w < 1.378 3.3 .071 .035 .024
10 .142 .071 .047
1.378 ≤ w < 4.921 3.3 .047 .024 .012
10 .094 .047 .024
4.921 ≤ w ≤ 9.843 3.3 .047

G0,6/3 means maximum straightness deviation of .024 in over a measuring length of 10 ft.

Grade Chemical Composition (percent nominal) Comparison of Norms
C Si Mn Cr DIN Material AISI
Eberle 18 1,00 0,25 0,40 C100S 1.274 1095
KG, KE Slit
.079 ≤ w ≤ 9.843 in
Deburred
t < .026 in: .157 ≤ w ≤ 9.843 in
t ≥ .026 in: .157 ≤ w ≤ 5.906 in
K2 Bevelled
t ≥ .012 in
.394 ≤ w ≤ 5.906 in
Tip: s
Bevel angle: x
K3 Rectangular rounded
t ≥ .006 in
.236 ≤ w ≤ 5.906 in
Standard radiuses r
.006 ≤ t < .010 in : .0016 in
.010≤ t < .031 in : .0031 in
.031 ≤ t < .050 in : .0059 in
.050 ≤ t ≤ .069 in : .0078 in
K4 Rounded
t ≥ .0024 in
.157 ≤ w ≤ 5.906 in