Cutting and deburring tool

A cutting and deburring tool comprising:

• a front end, a rear end, a length defined between the front and rear ends, and a central axis defined therebetween around which the cutting and deburring tool is configured to be rotated;
• a tip at the front end;
• a body portion extending from the tip, the body portion having a flute having first and second flute edges extending along the body portion thereby forming a body section, one of the flute edges being configured to cut a hole in the workpiece,
• the flute further comprising first and second deburring cutting edges extending from rear ends of the flute edges and a deburring guide surface extending between the first and second deburring cutting edges, the deburring cutting edges extending in a generally axial direction and being configured to deburr a first edge of the hole of the workpiece;
• a workpiece engaging portion extending rearwardly of the body portion;
• a shank extending from the workpiece engaging portion;
• and
• a rear body portion provided between the workpiece engaging portion and the shank, the rear body portion including first and second deburring cutting edges separated from each other by a flute and a deburring guide surface extending between the first and second deburring cutting edges of the rear body portion, the deburring cutting edges of the rear body portion extending in a generally axial direction and being configured to deburr a second edge of the hole of the workpiece.

A cutting and deburring tool comprising:

• a front end, a rear end, a length defined between the front and rear ends, and a central axis defined therebetween around which the cutting and deburring tool is configured to be rotated;
• a tip at the front end;
• a body portion extending from the tip, the body portion having a flute having first and second flute edges extending along the body portion thereby forming a body section, one of the flute edges being configured to cut a hole in the workpiece,
• the flute further comprising first and second deburring cutting edges extending from rear ends of the flute edges and a deburring guide surface extending between the first and second deburring cutting edges, the deburring cutting edges extending in a generally axial direction and being configured to deburr a first edge of the hole of the workpiece;
• a workpiece engaging portion extending rearwardly of the body portion;
• and
• a shank extending from the workpiece engaging portion,
• wherein each flute edge is defined by a radial rake angle,
• the first deburring cutting edge is defined by an axial rake angle and a radial rake angle,
• the radial rake angle of the first flute edge is constant along the length of the flute and is the same as the radial rake angle of the first deburring cutting edge,
• the second deburring cutting edge is defined by an axial rake angle and a radial rake angle,
• the radial rake angle of the second flute edge is constant along the length of the flute and is the same as the radial rake angle of the second deburring cutting edge, and
• wherein the radial rake angle defining the first flute edge and the first deburring cutting edge is different than the radial rake angle defining the second flute edge and the second deburring cutting edge.

A cutting and deburring tool comprising:

• a front end, a rear end, a length defined between the front and rear ends, and a central axis defined therebetween around which the cutting and deburring tool is configured to be rotated;
• a tip at the front end;
• a body portion extending from the tip, the body portion having a flute having first and second flute edges extending along the body portion thereby forming a body section, one of the flute edges being configured to cut a hole in the workpiece,
• the flute further comprising first and second deburring cutting edges extending from rear ends of the flute edges and a deburring guide surface extending between the first and second deburring cutting edges, the deburring cutting edges extending in a generally axial direction and being configured to deburr a first edge of the hole of the workpiece;
• a workpiece engaging portion extending rearwardly of the body portion;
• and
• a shank extending from the workpiece engaging portion,
• wherein each flute edge is defined by a radial rake angle,
• the first deburring cutting edge is defined by an axial rake angle and a radial rake angle,
• the radial rake angle of the first flute edge is constant along the length of the flute and is the same as the radial rake angle of the first deburring cutting edge,
• the second deburring cutting edge is defined by an axial rake angle and a radial rake angle,
• the radial rake angle of the second flute edge is constant along the length of the flute and is the same as the radial rake angle of the second deburring cutting edge, and
• wherein the radial rake angle defining the first flute edge and the first deburring cutting edge is between approximately 10 degrees and approximately 35 degrees, and the radial rake angle defining the second flute edge and the second deburring cutting edge is between approximately 10 degrees and approximately 30 degrees.

A cutting and deburring tool comprising:

• a front end, a rear end, a length defined between the front and rear ends, and a central axis defined therebetween around which the cutting and deburring tool is configured to be rotated;
• a tip at the front end;
• a body portion extending from the tip, the body portion having a flute having first and second flute edges extending along the body portion thereby forming a body section, one of the flute edges being configured to cut a hole in the workpiece,
• the flute further comprising first and second deburring cutting edges extending from rear ends of the flute edges and a deburring guide surface extending between the first and second deburring cutting edges, the deburring cutting edges extending in a generally axial direction and being configured to deburr a first edge of the hole of the workpiece;
• a workpiece engaging portion extending rearwardly of the body portion;
• and
• a shank extending from the workpiece engaging portion,
• wherein the first deburring cutting edge is defined by an axial rake angle and a radial rake angle, the second deburring cutting edge is defined by an axial rake angle and a radial rake angle, the axial rake angle of the deburring cutting edges is between approximately 20 degrees and approximately 60 degrees, the radial rake angle defining the first deburring cutting edge is between approximately 10 degrees and approximately 35 degrees, and the radial rake angle defining the second deburring cutting edge is between approximately 10 degrees and approximately 30 degrees.