No.309B Rectangular Reversible ratchet head

Q/ZBF-309B Die forged
Matched with torque wrench, used to perform protection when tighten or loosen special bolts and nuts.

Number	H*B mm	C inch	L mm	Be-Cu g	Al-Cu g
309B-1002	9*12	3/8	50	165	150
309B-1004	14*18	1/2	78	445	400