Wood boring bit with increased speed, efficiency and ease of use
View Patent ↗A wood boring bit for boring holes in wood and other similar work surfaces having a central longitudinal axis, a main body, a pilot screw tip and a partial flute with a cutting edge and a cutting spur. The flute portion may be defined by a partial helical section having a distal end joined to the main body and a lead edge disposed toward said screw tip. The distal end and the lead edge preferably do not overlap along the central axis and are equal to or less than 360° from one another around the axis. The partial flute provides improved waste removal and allows the user to access the cutting edge of the flute for maintenance purposes.
1. A wood boring bit for boring a hole along a longitudinal central axis comprising:
a shaft portion having a first end and a second end, a pilot screw tip extending from said first end; and
a single flute portion;
said single flute portion adjacent said first end, wherein said single flute portion is defined by a partial helical section, said partial helical section having a distal end joined to said shaft portion and a lead edge disposed toward said screw tip;
wherein said distal end and said lead edge do not overlap along said central axis and are equal to or less than 360° from one another around said axis.
2. The wood boring bit of claim 1 , wherein said distal end of said partial helical section is joined to said second end of said shaft portion.
3. The wood boring bit of claim 1 , wherein said screw tip has a base approximately adjacent to said lead edge of said single flute portion and said lead edge of said single flute portion having a beveled cutting edge.
4. The wood boring bit of claim 3 , wherein said cutting edge is integrally formed to said lead edge of said single flute portion.
5. The wood boring bit of claim 3 , wherein said beveled cutting edge is beveled at between 30° and 90° from said central axis.
6. The wood boring bit of claim 3 , wherein the cutting edge is approximately 45° from said central axis.
7. The wood boring bit of claim 1 , wherein said single flute portion further comprises an outer surface approximately parallel to said central axis, and wherein said single flute portion includes a cutting spur disposed along said outer surface toward said lead edge.
8. The wood boring bit of claim 3 , wherein said single flute portion further comprises an outer surface approximately parallel to said central axis, and wherein said single flute portion includes a cutting spur disposed along said outer surface toward said lead edge of said single flute portion.
9. A wood boring bit extending along a longitudinal central axis comprising:
a main body;
a screw tip attached to said main body; and
one and only one flute attached to said main body, said flute defined by a partial helical section having a distal end and a lead edge;
wherein said distal end and said lead edge do not overlap along said central axis and are disposed equal to or less than 360° from one another.
10. The wood boring bit of claim 9 , wherein said screw tip is removable from said main body.
11. The wood boring bit of claim 9 , wherein said screw tip has a base approximately adjacent to said main body and said lead edge of said flute being disposed toward said base and including a beveled cutting edge.
12. The wood boring bit of claim 11 , wherein said beveled cutting edge is beveled at between 30° and 90° from said central axis.
13. The wood boring bit of claim 12 , wherein the cutting edge is approximately 45° from said central axis.
14. The wood boring bit of claim 9 , wherein said flute further comprises an outer surface approximately parallel to said central axis, and wherein said flute includes a cutting spur disposed along said outer surface of said flute toward said lead edge.
15. The wood boring bit of claim 11 , wherein said flute further comprises an outer surface approximately parallel to said central axis, and wherein said flute includes a cutting spur disposed along said outer surface of said flute toward said lead edge.
16. The wood boring bit of claim 14 , wherein the flute further comprises an inner surface defined by a plane lying within a warped surface of said partial helical section.
17. The wood boring bit of claim 11 , wherein said cutting edge is approximately tangent to said main body.
18. The wood boring bit of claim 11 , wherein said cutting edge is approximately perpendicular to said central axis.
19. The wood boring bit of claim 11 , wherein said bit further comprises a second flute defined by a second partial helical section having an outer surface and a lead edge defined by a second cutting edge beveled to an angle between 30° and 90°;
said bit further including a second cutting spur disposed along said outer surface of said second flute toward said lead edge.
20. A wood boring bit extending along a longitudinal central axis comprising:
a main body;
a single flute attached to said main body, said flute defined by a partial helical section having a distal end and a lead edge;
wherein said distal end and said lead edge do not overlap along said central axis and are disposed equal to or less than 360° from one another.
21. The wood boring bit of claim 20 wherein said lead edge of said flute includes a beveled cutting edge.
22. The wood boring bit of claim 21 , wherein said beveled cutting edge is beveled at between 30° and 90° from said central axis.
23. The wood boring bit of claim 22 , wherein the cutting edge is approximately 45° from said central axis.
24. The wood boring bit of claim 20 , wherein said flute further comprises an outer surface approximately parallel to said central axis, and wherein said flute includes a cutting spur disposed along said outer surface of said flute toward said lead edge.
25. The wood boring bit of claim 21 , wherein said cutting edge is approximately tangent to said main body.
26. The wood boring bit of claim 21 , wherein said cutting edge is approximately perpendicular to said central axis.
27. The wood boring bit of claim 21 , wherein said bit further comprises a second flute defined by a second partial helical section having an outer surface and a lead edge defined by a second cutting edge beveled to an angle between 30° and 90°;
said bit further including a second cutting spur disposed along said outer surface of said flute toward said lead edge.
28. A kit for a wood boring drill assembly, the kit comprising:
a drill implement;
a wood boring bit for boring a hole along a longitudinal central axis, said wood boring bit removably attached to said drill implement and comprising:
a shaft portion having a first end and a second end, a pilot screw tip extending from said first end, and a single flute portion adjacent said first end;
wherein said single flute portion is defined by a partial helical section, said partial helical section having a distal end joined to said shaft portion and a lead edge disposed toward said screw tip; and
wherein said distal end and said lead edge do not overlap along said central axis and are equal to or less than 360° from one another around said axis.
29. A method for boring a hole in a work surface comprising:
providing a drill;
providing a wood boring bit comprising:
a shaft portion having a first end and a second end, a pilot screw tip extending from said first end, and a single flute portion adjacent said first end;
wherein said single flute portion is defined by a partial helical section, said partial helical section having a distal end joined to said shaft portion and a lead edge disposed toward said screw tip; and
wherein said distal end and said lead edge do not overlap along said central axis and are equal to or less than 360° from one another around said axis;
removably attaching said wood boring bit to a receiving portion of said drill; and
holding the drill a distance away from a work piece and exerting pressure on said work piece with said wood boring bit so that said bit is urged through the work surface creating a hole in said surface.