45 # steel forged hardened glass handle hammer hammer hammer hammer hammer & nbsp;
Handle points: a wooden handle, steel pipe handle, fiber handle, plastic handle, etc.;
By hammer points: American, British, Italian style.
Hammer are 45 # steel forging process,Mirror polished,Quench HRC48-52, between the horn quenching HRC38-42, grinding wheel after grinding.Durable, and very beautiful.
High quality wooden handle claw hammer (inner box packing 6PCS an inner box)
250g 4.7 RMB 60pcs
350g 5.5 RMB 60PCS
500g 6.2 RMB 48pcs
750g 7.2 RMB 36pcs
Bleached wooden handle British claw hammer(Inner box packing 6PCS an inner box)
21MM price 5.0 RMB 60PCS
23MM price 5.8 RMB 60PCS
25MM price 6.4 RMB 48PCS
27MM price 6.7 RMB 48PCS
29MM Price 7.7 RMB 36PCS
High quality wooden handle (tail stained plastic) claw hammer(Inner box packing 6PCS an inner box)
250g price 5.6 60pcs
350g price 6.2 60PCS
500g price 7.0 48pcs
750g price 7.9 36pcs
Features
45 # steel forging, hammer quenching HRC48-52, between the horn quenching HRC38-42, grinding wheel after grinding. High hardness, no deformation,The head can be mirror throw or spray treatment, durable, never rust.
Handle for the non-slip high-quality wooden handle, friction, feel comfortable.
3, from product production to shipping, every detail is strictly good quality off. Products from the scrutiny and test.
Filling epoxy resin glue, hammer and handle between the very strong, never drag.
The hammer is a beating object that moves or deforms the tool. The most commonly used to knock nails, correct or knock on the object. Hammers have a wide variety of forms, the common form is the handle handle and the top. The top side is flat to percussion, the other side is the hammer. The shape of the hammer can be like a horn, or it can be a wedge, its function is to pull out the nail. There is also a rounded nail.
When using the lever, in order to save effort, you should use the power arm than the arm of the arm; if you want to save the distance, you should use the power arm than the resistance arm short lever. So you can use the lever can save effort, you can save distance. However, in order to save effort, you must move more distance; to less moving distance, it must be more costly. It is impossible to achieve the sake of saving and less moving distance. It is from these axioms that, on the basis of the theory of "center of gravity", Archimedes discovers the principle of leverage, that is, the distance between them and the weight is inversely proportional to the weight.
Lever of the fulcrum is not necessarily in the middle, to meet the following three points of the system, basically is the lever: fulcrum, force point, force point.
Where the formula to write: power × power arm = resistance × resistance arm, that is, F1 × l1 = F2 × l2 This is a lever.
Power arm extension
Lever is also a leveraging force and leverage, both of which have different performance. For example, there is a kind of foot with the suction machine, or hand pressure of the juicer, is the effort of the lever (force arm & gt; force); but we have to press a larger distance, the force side only a small action The There is also a laborious lever. For example, the roadside crane, fishing hooks in the tip of the whole rod, the end is the fulcrum, the middle is the hydraulic machine (torque "force arm), which is laborious lever, but the effort is in the middle of the force point as long as the action Small distance, the tip of the hook will move a considerable distance.
Both levers are useful, just to use the place to assess is to save effort or save the scope of action. Another kind of thing called the axle, can also be regarded as a lever of the application, but the performance may still be added to the calculation of rotation.
