Difference between Straight Shank Twist Drill Bit and Taper Shank Twist Drill Bit
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Update time : 2017-06-26 11:09:57
The difference between straight shank twist drill bit and taper shank twist drill bit :
Generally more than 13mm in diameter with a taper shank, diameter below 13mm with a straight handle. Mainly to consider the convenience of clamping and have enough clamping force. Small drill bit made of cone is obviously not worthwhile, so made straight handle.
Equipped with rocker drill sure both drill bits are available. Another set of Mohs is a must. With a No. 3 Mo's drill sets of drill chuck also prepared one, chuck with 0-13 or 2-16 can, if not drill into the hole below 1mm, with 2-16 drill chuck comparison Good (used to clip straight handle twist drill, tap and the like).
Drill chuck to have a matching lever (generally called the chuck spoon), another play Mohs cone to be equipped with a cone iron, but this thing can be self-made.
Straight handle shank twist drill Note:
1. When drilling steel, please ensure adequate cooling and use metal cutting fluid.
2, a good drill pipe steel and rail clearance can improve the accuracy of drilling and drill life.
3, please ensure that the magnetic seat and the workpiece between the smooth and clean.
4, drilling sheet, to strengthen the workpiece, drilling large parts, please ensure that the workpiece is stable.
5, at the beginning and end of the drilling, the feed should be reduced by 1/3.
6, the drilling of a large number of fine powder when the material, such as cast iron, cast copper, you can not use the coolant, and the use of compressed air to help chip removal.
7, please promptly remove the iron filings wrapped in the drill body to ensure smooth chip removal.
Points for use morse taper shank twist drill bit
1, the drill should be installed in a special box, to avoid vibration collide with each other.
2, when used, remove the drill from the box should be installed to the spindle chuck or automatically replace the drill tool library. Run out immediately into the box.
3, measuring the diameter of the drill using a tool microscope and other non-contact measuring instruments, to avoid cutting edge and mechanical measuring instrument contact was bruised.
4, some CNC drilling machine using the positioning ring Some CNC drilling machine does not use the positioning ring, such as the use of positioning ring when the installation of the depth of positioning must be accurate, if not use the positioning ring of the drill to the spindle extension to adjust Consistent, multi-spindle drilling machine to pay attention to this point, so that each spindle drilling depth to be consistent. If the inconsistency is likely to drill the drill bit to the table or can not drill through the circuit board to cause scrapping.
5, usually 40 times the use of three-dimensional microscope to check the drill bit cutting edge wear.
6, to always check the spindle and spring chucks concentricity and spring chuck clamping force, concentricity will cause a small diameter drill bit drill and large aperture, etc., clamping force will cause the actual speed and Set the speed does not meet, chuck and drill between the slippery.
7, handle the drill bit in the spring chuck on the length of the drill handle diameter of 4 to 5 times to clamp.
8, to always check the spindle presser foot. Press the foot contact surface to the level and the vertical axis can not shake, to prevent drilling holes and drill holes.
9, the bed of the vacuum effect is better, the dust can reduce the temperature of the drill bit, colleagues take away the dust to reduce friction to produce high temperature.
10, the substrate stack, including the upper and lower pad to the drill table on a hole in a slot-type positioning system positioning prison, flat. Use adhesive tape to prevent drill bit drilling on the tape so that the drill bit sticks to the chip, causing the chip to be difficult and broken.
The above is the note for use of morse taper shank twist drill bit.
Generally more than 13mm in diameter with a taper shank, diameter below 13mm with a straight handle. Mainly to consider the convenience of clamping and have enough clamping force. Small drill bit made of cone is obviously not worthwhile, so made straight handle.
Equipped with rocker drill sure both drill bits are available. Another set of Mohs is a must. With a No. 3 Mo's drill sets of drill chuck also prepared one, chuck with 0-13 or 2-16 can, if not drill into the hole below 1mm, with 2-16 drill chuck comparison Good (used to clip straight handle twist drill, tap and the like).
Drill chuck to have a matching lever (generally called the chuck spoon), another play Mohs cone to be equipped with a cone iron, but this thing can be self-made.
Straight handle shank twist drill Note:
1. When drilling steel, please ensure adequate cooling and use metal cutting fluid.
2, a good drill pipe steel and rail clearance can improve the accuracy of drilling and drill life.
3, please ensure that the magnetic seat and the workpiece between the smooth and clean.
4, drilling sheet, to strengthen the workpiece, drilling large parts, please ensure that the workpiece is stable.
5, at the beginning and end of the drilling, the feed should be reduced by 1/3.
6, the drilling of a large number of fine powder when the material, such as cast iron, cast copper, you can not use the coolant, and the use of compressed air to help chip removal.
7, please promptly remove the iron filings wrapped in the drill body to ensure smooth chip removal.
Points for use morse taper shank twist drill bit
1, the drill should be installed in a special box, to avoid vibration collide with each other.
2, when used, remove the drill from the box should be installed to the spindle chuck or automatically replace the drill tool library. Run out immediately into the box.
3, measuring the diameter of the drill using a tool microscope and other non-contact measuring instruments, to avoid cutting edge and mechanical measuring instrument contact was bruised.
4, some CNC drilling machine using the positioning ring Some CNC drilling machine does not use the positioning ring, such as the use of positioning ring when the installation of the depth of positioning must be accurate, if not use the positioning ring of the drill to the spindle extension to adjust Consistent, multi-spindle drilling machine to pay attention to this point, so that each spindle drilling depth to be consistent. If the inconsistency is likely to drill the drill bit to the table or can not drill through the circuit board to cause scrapping.
5, usually 40 times the use of three-dimensional microscope to check the drill bit cutting edge wear.
6, to always check the spindle and spring chucks concentricity and spring chuck clamping force, concentricity will cause a small diameter drill bit drill and large aperture, etc., clamping force will cause the actual speed and Set the speed does not meet, chuck and drill between the slippery.
7, handle the drill bit in the spring chuck on the length of the drill handle diameter of 4 to 5 times to clamp.
8, to always check the spindle presser foot. Press the foot contact surface to the level and the vertical axis can not shake, to prevent drilling holes and drill holes.
9, the bed of the vacuum effect is better, the dust can reduce the temperature of the drill bit, colleagues take away the dust to reduce friction to produce high temperature.
10, the substrate stack, including the upper and lower pad to the drill table on a hole in a slot-type positioning system positioning prison, flat. Use adhesive tape to prevent drill bit drilling on the tape so that the drill bit sticks to the chip, causing the chip to be difficult and broken.
The above is the note for use of morse taper shank twist drill bit.