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Click Specification

Unit:mm

Box Wrenches

GB /T 4388 - 2008

Display drawing:

国标GB /T4388 - 2008 GB4388 4388GB Box Wrenches

Size

10

11

12

13

14

15

16

17

18

19

20

21

s
e	max
L	min

10	11	12	13	14	15	16	17	18	19	20	21
9	9.5	10.5	11	11.5	12	12.5	13	14	14.5	15	15.5
105	110	115	120	125	130	135	140	150	155	160	170

Size

22

23

24

25

26

27

28

29

30

31

32

34

s
e	max
L	min

22	23	24	25	26	27	28	29	30	31	32	34
16	16.5	17.5	18	18.5	19	19.5	20	20	20.5	21	22.5
180	190	200	205	215	225	235	245	255	265	275	285

Size

36

41

46

50

55

60

65

70

75

80

s
e	max
L	min

36	41	46	50	55	60	65	70	75	80
23. 5	26.5	28.5	32	33.5	36. 5	39.5	42.5	46	49
300	330	350	370	390	420	450	480	510	540

Similar Standards

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