The above price is a set of 2 tubes. The product is a hand tap (not used by machine, please do not install it on machine drill lathes, etc., the material design strength does not reach high-speed processing.DrillingIf the wear resistance is required to be installed on an electric drill lathe, please put a single machine tap)

Product usage range: suitable for thick steel, rubber, aluminum, copper, and wooden boards.

How to use: One set of products has 2 pins, which can also be divided into head cone and two cone.The function of the head cone: There is a taper at the front of the head cone, which is smooth and has no thread (very shallow), which facilitates the tap and tap holes.“Correct”Ensure the perpendicularity of the tap and the hole and tap smoothly.The function of the two cones: to remove the margin of the head coneProcess, in order to meet the standards, it also plays a light-retouching effect on threading (removing burrs).“Blind hole”Threaded“Tapping to the bottom.It can be said that the head cone is rough processing, and the two cone is fine processing.

       The workpiece to be processed should be clamped straight. Generally, the side where the workpiece needs to be tapped should be placed in a horizontal or vertical position.In this way, when tapping threads, it is easier to determine and maintain the direction of the tap perpendicular to the base surface of the workpiece thread.When starting to tap threads, try to put the tap straight, then press the axis direction of the tap with one hand and turn it gently with the other handHinge.After the tap rotates for 1 to 2 turns, observe from the front or side whether the tap is perpendicular to the thread base surface of the workpiece. If necessary, you can use a right-angle ruler to correct it. Generally, after 3 to 4 turns of thread, the direction of the tap is basically determined.If the thread tap starts wrong, you can screw the tap out, correct it with two tapers, and then tap the thread with the head tap. When all the cutting parts of the tap enter the workpiece, there is no need to apply it.Axial force, just rotate naturally by the thread.
When tapping threads, the tap should not be too much each time you rotate the hinge lever. Generally, it is appropriate to rotate 1/2 to 1 turn each time. The tap below M5 should not be more than 1/2 turn at one turn;When fine threads or threads with high accuracy requirements, each timeFeed rateIt should also be appropriately reduced; the speed of attacking and cutting cast iron can be appropriately faster than when attacking and cutting steel. After each rotation, it will be reversed to about 1/2 of the stroke of the rotation; when attacking and cutting deeper threads, the rotation strokeIt is also larger and needs to be twisted back and forth several times, which can break the chips, which is conducive to chip removal and reducesCut bladeSticking phenomenon to maintain a sharp edge; at the same timeCutting fluidIt smoothly enters the cutting part and plays a role in cooling and lubrication.
When rotating the hinge, the operator must balance the force of both hands. Do not use too much force or shake left and right, otherwise it will be easy toThreaded tooth typeTear and cause threaded holes to expand and taper.