Hook wrench: also known as crescent wrench, hook spanner known for wrenching the thickness of the restricted flat nuts; dedicated to the dismantling vehicles, machinery and equipment of the round nut, the slot is divided into rectangular and circular card slot groove.
Production process: the use of high-quality steel forging from high temperature, high strength, wear resistance.
The outside diameter of the scope of round nut: S: 22 ~ 26 S: 28 ~ 32 S: 34 ~ 36 S: 38 ~ 42 S: 45 ~ 52 S: 55 ~ 62 S: 68 ~ 72 S: 78 ~ 85 S: 90 ~ 95 S: 100 ~ 110 S: 115 ~ 130 S: 135 ~ 145 S: 150 ~ 160 S: 165 ~ 170 S: 180 ~ 200 S: 200 ~ 220 S: 240 ~ 260 S: 260 ~ 280 S: 280 ~ 300 S: 300 ~ 320 S: 320 ~ 350 S: 360 ~ 380 S: 380 ~ 400 S: 400 ~ 420
Special tools: the introduction of German technology, in line with the German DIN7444 standard (GD / T4388-1995, GB / T4389-1995, GB / T43390-1995) using high-quality alloy steel, die forging forming a workpiece by forging and by 630-1600T large Mount calendering together. tool steel tools than precise size, tensile strength, abrasion resistance and good.
Hook wrench Surface treatment is a surface-black coating, which is a surface coating of gray hammer handle chrome steel products mainly include: double plum, wrench; percussion plum, high-neck pry bar wrenches, high neck American knock hit wrenches and wrench; convex wrenches; single head Plum, wrenches, socket wrenches, ratchet wrenches, hook wrenches, hex wrench, tap wrench exterior design meets German DI133 standard tap wrench Exterior design standards in line with DI7444, exports more than 30 countries and regions