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Click Specification

Unit:mm

Open End Wrench

GB /T 4388 - 2008

Display drawing:

国标GB /T4388 - 2008 GB4388 4388GB Open End Wrench

Size

5.5

6

7

8

9

10

11

12

13

14

15

16

17

s
e	max
L	min

5.5	6	7	8	9	10	11	12	13	14	15	16	17
4.5	4.5	5	5	5.5	6	6.5	7	7	7.5	8	8	8.5
80	85	90	95	100	105	110	115	120	125	130	135	140

Size

18

19

20

21

22

23

24

25

26

27

28

29

30

s
e	max
L	min

18	19	20	21	22	23	24	25	26	27	28	29	30
9	9	9.5	10	10.5	10.5	11	11.5	12	12.5	12.5	13	13.5
150	155	160	170	180	190	200	205	215	225	235	245	255

Size

31

32

34

36

41

46

50

55

60

65

70

75

80

s
e	max
L	min

31	32	34	36	41	46	50	55	60	65	70	75	80
14	14.5	15	15.5	17.5	19.5	21	22	24	26	28	30	32
265	275	285	300	330	350	370	390	420	450	480	510	540

Similar Standards

1		[GB] GB /T 14765 - 2008	Four-Way Socket Wrenches
2		[GB] GB /T 4388 - 2008	Deep-Offset Box Wrench
3		[GB] GB /T 4388 - 2008	Combination Wrench
4		[GB] GB /T 4388 - 2008	Box Wrenches
5		[GB] GB /T 4388 - 2008	Two-Head Box Wrenches
6		[GB] GB /T 4388 - 2008	Two-Head Open-End Wrench