Deburring tool

A debarring tool for deburring abutting edges at orthogonally and

• obliquely extending transversal boreholes having a diameter of less than 10 mm in
• a component moved in a rotational and/or translatory manner when being used,
• the deburring tool comprising:
• a tool shaft (1) having a longitudinal axis, a lateral axis perpendicular to the longitudinal axis, a clamping end (2) and an opposite shaft end;
• the tool shaft (1) having a borehole (7) defined therethrough in a direction of the longitudinal axis;
• a material connection (4) disposed on the clamping end (2) of the tool shaft (1);
• a support body (6) disposed on the shaft end of the tool shaft (1) and arranged as a fixed cutting blade journal;
• a tubular shaft part (5) connected to the tool shaft (1) and having at least one passage (10) defined therein;
• a closing element (12) receivable into the tubular shaft part (5);
• a connecting element (9) securing the cutting blade (3) by pinning the closing element (12) to the tubular shaft part (5);
• and
• at least one cutting body (11) moveably mountable in the at least one passage (10) of the tubular shaft part (5);
• the at least one cutting body (11) bearing loosely and with a play (8) on a surface of the support body (6);
• wherein the surface of the support body (6) and a surface of the at least one cutting body (11) differ in shape and dimension;
• the at least one cutting body (11) including a cutting blade (3) with a clearance angle of 0degrees;
• the cutting blade (3) having a first end disposed proximate the shaft end of the tool shaft (1), an opposite second end disposed proximate the clamping end of the tool shaft (1) and shoulders formed by a plurality of surfaces (F1;
• F2;
• F3);
• wherein the plurality of surfaces (F1;
• F2;
• F3) comprise:
• (i) a first surface (F1) disposed at the first end of the cutting blade (3) is defined by an introduction angle ζ relative the lateral axis of the tool shaft (1),
• wherein the introduction angle ζ is in a range from 5 degrees to 45 degrees;
• (ii) a second surface (F2) disposed at the second end of the cutting blade (3) is defined by a chip space angle γ relative to the lateral axis of the tool shaft (1);
• wherein the second surface (F2) forms an effective cutting blade edge (15) defined by a chip space (l8) and a step chip breaker (20), wherein the step chip breaker (20) is defined by a chip guiding angle ε relative to the longitudinal axis of the tool shaft (1);
• a cutting blade edge (19) is defined by an undercut angle {acute over (æ)} relative to the longitudinal axis of the tool shaft (1);
• wherein the cutting blade (3) is displaceable radially outward when a pressurized substance is introduced into the borehole (7) of the tool shaft (1).