Screwdrivers slotted non sparking screwdriver

Number

L1
inch

L1
mm

L
mm

H
mm

B
mm

Be-Cu
g

Al-Cu
g

TK260-02
TK260-04
TK260-06
TK260-08
TK260-10
TK260-12
TK260-14
TK260-16
TK260-18
TK260-20
TK260-22
TK260-24
TK260-26
TK260-28
TK260-30
TK260-32
TK260-34
TK260-36
TK260-38

2
2
3
3
3
4
4
4
5
6
6
6
8
10
10
12
12
14
16

50
50
75
75
75
100
100
100
125
150
150
150
200
250
250
300
300
350
400

134
134
159
159
180
184
205
215
240
265
265
277
327
377
377
427
427
477
550

0.4
0.5
0.4
0.5
0.6
0.5
0.6
0.8
0.8
0.8
1
1.2
1.2
1.4
2
1.8
2
2
2.4

3
4.5
3
4
5
4
5
6
6
6
7
8
8
9
11
10
11
11
12

35

43

35

45

70

45

75

85

100

110

125

140

165

185

260

245

290

320

450

33

40

32

42

65

42

70

80

95

105

120

135

155

175

245

230

275

300

430

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