Ratchet wrench with material introduction:

Hand-held switch, work more convenient; equipped with a variety of different sleeves to meet different job requirements; small size, light weight, long time work is not fatigue; power output is stable, smooth; Professional high-precision bearings, high precision, long life; can be quickly and easily forward and reverse to adjust; high-quality alloy steel gear, yoke, D head and idler, quenching, more durable.