Carpenter's pencil sharpener

A carpenter's pencil sharpener for cutting a point on a carpenter's pencil having a non-circular cross section orthogonal to a longitudinal axis of the carpenter's pencil, comprising:

• a contouring portion defining a rotational axis and having a contouring surface defined about said rotational axis;
• a blade mounted on said contouring portion and having a culling edge positioned along said contouring surface for cutting against the carpenter's pencil as the carpenter's pencil is rotated;
• and
• a non-rotating centering portion fixed to said contouring portion and having a cylindrical inner surface for permitting the carpenter's pencil to rotate within said inner cylindrical surface and an outer end defining an entry to said cylindrical surface, said centering portion having a length parallel to said rotational axis and measured from said contouring surface to said outer end being at least approximately 1.25 inches, and said cylindrical surface having an inner diameter of one selected from the group consisting of approximately 0.605 inches, 0.545 inches, 0.515 inches and 0.494 inches.

A carpenter's pencil sharpener for cutting a point on a carpenter's pencil having a non-circular cross section, comprising:

• a contouring portion having a pencil point contour surface defined therein and defined about a rotational axis;
• a blade mounted on said contouring portion, said blade having a cutting edge positioned along said contour surface for culling against the carpenter's pencil when the carpenter's pencil is rotated about said rotational axis;
• and
• a centering portion extending from said contouring portion and having a length (L) for centering the carpenter's pencil along said rotational axis, said length (L) of said centering portion being at least 60% as long as said contouring portion measured parallel to said rotational axis.

A carpenter's pencil sharpener for cutting a point on a carpenter's pencil having a non-circular cross section orthogonal to a longitudinal axis of the carpenter's pencil, comprising:

• a contouring portion having a pencil point contour surface defined therein and defined about a rotational axis;
• a blade mounted on said contouring portion, said blade having a cutting edge positioned along said contour surface for cutting against the carpenter's pencil when the carpenter's pencil is rotated about said rotational axis;
• and
• a non-rotating centering portion free of moving parts relative to said contouring portion and at least rotationally fixed to said contouring portion, said centering portion having a length (L) selected for restricting radial movement of the carpenter's pencil relative to said rotational axis, said length (L) of said centering portion being at least 60% of the length of said contouring portion, wherein said centering portion maintains the carpenter's pencil along said rotational axis as the carpenter's pencil is rotated within the centering portion.