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The introduction of stainless steel drill bit

Mar 15, 2016

  A , which comprises a knife rod (1), the knife rod with a tip, tip has two in a principal plane (C - C) of the cutting blade (5, 5 ') ,the cutting blade (5, 5') have in common the second plane (e e) oriented short center cutting blade. The cutting edge forms a point central cutting edge for entering the work piece, and thus the  is right. The cutter rod, Two Flutes (6, 6 '), the chip groove (6, 6) extend from the tip to the end. Along any cross section of the knife rod, chip groove in the flat tube are located in each other in the radial direction relative to the position, flat tube and in the two blade on both sides of the tube with the common edge with a plane (F - F) into 90 degrees extension, the knife rod in the plane with maximum rigidity. The orientation of the second plane (E E) of the central cutting edge is approximately 90 degrees to the bottom end of the edge of the cutting edge plane or the bottom .

   Digging,the steel drill rotate around the vertical shaft, the axial movement. The soil is cut under the torque and axial force of the drill, which is destroyed and crushed under the action of the compression and centrifugal force of the working blades, and forms the soil pressure to the pit wall, and along the page up to the surface. When the soil flow to the pit wall stopping point, due to the centrifugal force broken was thrown into the pit around, complete the whole process of digging holes.
A , which comprises a knife rod (1), the knife rod with a tip.The cutting edge forms a point central cutting edge for entering the work piece, and thus the  is right.

   Bar, Two Flutes (6, 6 '), the chip groove (6, 6) extend from the tip to the end. Along any cross section of the knife rod, chip groove in the flat tube are located in each other in the radial direction relative to the position, flat tube and in the two blade on both sides of the tube with the common edge with a plane (F - F) into 90 degrees extension, the knife rod in the plane with maximum rigidity. The orientation of the second plane (E E) of the central cutting edge is approximately 90 degrees to the bottom ,the end of the edge of the cutting edge plane or the bottom end of the tool bar (F - F).

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