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GB /T 4388 - 2008

Two-head Box Wrenches

GB /T 4388 - 2008 双头梅花扳手 - 直颈、弯颈

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Dimensional Specifications — GB /T 4388 - 2008 (mm)

Size	P	s_max	s_min	k_nominal
7	8	10	8	89
8	10	13	9.5	105
10	13	14	9.5	129
(6)	7	8	7	81
(8)	10	11	8.5	105
(9)	12	13	9.5	121
(10)	13	15	10	129

Related Standards

GB /T 3390.1 - 2013— Hand Operated Socket Wrenches - Socket, Series 6.3 GB /T 3390.1 - 2013— Hand Operated Socket Wrenches - Socket, Series 10 GB /T 3390.1 - 2013— Hand Operated Socket Wrenches - Socket, Series 12.5 GB /T 3390.1 - 2013— Hand Operated Socket Wrenches - Socket, Series 20 GB /T 3390.1 - 2013— Hand Operated Socket Wrenches - Socket, Series 25 GB /T 14765 - 2008— Four-way Socket Wrenches GB /T 4388 - 2008— Two-head Open-end Wrench GB /T 4388 - 2008— Deep-Offset Box Wrench

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