Published at Wednesday, August 01st 2018. by Admin in Drill Bits.
Shank is the edge of drill bit which is grabbed by the chuck of a drill or the end of cutting drill bit which is connected with rod by the shank. It is appropriated with the chuck. The combination of shank and chuck give empowerment and increasing the accomplishment, for the examples are giving higher torque, giving higher speed, and bit movement with hammer. Shank drill bit is edge of drill which connect in the chuck of rotating axle. There are many types and kinds of drill bit shank. The main differentiation of the shank drill bit are shapes and different functions.
The types of shank drill bit are:
Before modern manufacturing, the brace shank is very popular. Basically, brace shank is multisided shank which is tapers to a point and locks on the chuck by angular dispensation. Newest technology makes it easier to develop the shapes and sizes. It is easy to be build up. If the special chuck is not used, it makes bare on the tool. Torque fortitude is necessary. The advantageous of brace shank includes easy to make in counterfeit, the tolerance is wide, acceptable for chuck needs, and medium torque transmission. The other, torque tolerance is tolerable even though uncover can occur.
Hex shank or hexagonal shape of the shank is little bit comparable with screwdriver bit. Hexagonal shank can be used on drill mandrel chucks and screwdriver bit chucks. The main cause reason is form the shape of it. On the twist transmission, the angle shape of hex shank is little bit more handling than brace shank. It can be worked on greater resistance material. Nevertheless, the angle of the shape makes decentering which is cause inaccurately drilling.
It is almost similar with hex shank, but it has three angles on the six’s hex. The features as same as with hex shank such as high-speed twist ability and good centering. The weakness of triangle shank cannot be attached on many different drill like hex shank.
The advantage using SDS Shank is simply on installation of the chuck, it causes that the bit is easier to push into the chuck. Shank and chuck on this tool are created particularly for hammer drilling on stone and concrete with masonry drill. Actually, this shank is designed particularly with spring load installation system. This system makes the user easy to insert the chuck by hand. On the drilling process, the spring gives under pressure, it means the drill can be hammering and masonry performance.
5.Morse Tapper Shank
Morse taper shank is normally easy to be produced, but the user should have ability and familiar with this tool to assure right performance, such as on the transmission twisted create the variety if the procedural is not being used. This drill is suitable with chuck because there is non-circular shank cross section to prevent the slipping of rotation.
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