Explosion-proof hand tools aluminum bronze hex key spanner wrench

Number

S
mm

L
mm

H
mm

Be-Cu
g

Al-Cu

g 

167B-2
167B-3
167B-4
167B-5
167B-6
167B-7
167B-8
167B-9
167B-10
167B-11
167B-12

2
3
4
5
6
7
8
9
10
11
12

50
63
70
80
90
95
100
106
112
118
125

16
20
25
28
32
34
36
38
40
42
45

3
5
12
22
30
50
56
85
100
140
162

2
4 

11

20

27

45

50

77

90

126

145

Beryllium copper:  GBEx ⅡC

Be: 1.8% - 2.3%

Ni: 0.2% - 0.5%

Others: < 0.5%

Cu: Rest

Hardness: 35-40 HRC (HB283-365)

Tensile Strength: 1117 N/mm2 ~ 1326 N/mm2

Aluminum bronze: GBEx ⅡB

Al: 10% - 12%

Ni: 4% - 6%

Fe+Mn: < 5.8%

Cu: Rest

Hardness: 20-30 HRC (HB229-291)

Tensile Strength: 782 N/mm2 ~ 989 N/mm2