B27G15/00

Contour rake face cutting tool

A contoured rake face cutting tool and method of making is disclosed. A rotary cutting tool with a plurality of teeth can cause damage to a work piece during cutting. By orienting the cutting angle of the teeth relative to the rotational central axis to high shear angle such as 50 or 70 degrees, the tool creates a high compression cut which is cleaner and less damaging to the work piece. The cutting surface itself is profiled, i.e. non-planar, such as concave or convex or other non planar shape, which is preferably formed into an ultra-hard material which is supplied for use in a planar form.

STEP DRILL

A step drill includes a distal end, an opposite proximal end, a drill tip and at least one drill step. The drill tip has a tip at the distal end of the step drill and comprises a first number of geometrically defined cutters, each of which is paired with a first flute and lies on an imaginary first circular line about a longitudinal axis of the step drill. The imaginary first circular line has a first radius. The at least one drill step is arranged at a distance from the distal end and has an end face with a second number of geometrically defined cutters each of which is paired with a second flute and lies on an imaginary second circular line that runs about the longitudinal axis of the step drill and has a second radius. The first radius is smaller than the second radius. The first flutes of the drill tip and the second flutes of the drill step merge in a region, which is arranged at a greater distance from the distal end than the end face of the drill step, and form a single flute.

HOLESAW AND PILOT BIT WITH THREADED TIP
20190168314 · 2019-06-06 ·

A holesaw assembly includes a holesaw and a pilot bit. The holesaw includes a hollow cup defining a center axis. The cup has a round base perpendicular to the center axis and a peripheral wall coupled to and extending axially forward of the base to a peripheral edge at a free end of the wall. The pilot bit is received in the holesaw along the center axis. The pilot bit has a shaft received in the base, a cutting head coupled to a front end of the shaft, and an at least partially threaded tip coupled to a front end of the cutting head. The holesaw is free of any radial cutting elements disposed inside the cup between the drill bit and the peripheral wall of the cup.

HOLESAW AND PILOT BIT WITH THREADED TIP
20190168314 · 2019-06-06 ·

A holesaw assembly includes a holesaw and a pilot bit. The holesaw includes a hollow cup defining a center axis. The cup has a round base perpendicular to the center axis and a peripheral wall coupled to and extending axially forward of the base to a peripheral edge at a free end of the wall. The pilot bit is received in the holesaw along the center axis. The pilot bit has a shaft received in the base, a cutting head coupled to a front end of the shaft, and an at least partially threaded tip coupled to a front end of the cutting head. The holesaw is free of any radial cutting elements disposed inside the cup between the drill bit and the peripheral wall of the cup.

Shaper cutter heads and router bits with indexing feature
12005513 · 2024-06-11 ·

An apparatus (1300), including: a shaper cutter head (1308) having: a body (1312); a bore (1314) through the body; and a cutter 1310) secured to the body. Along a longitudinal axis (1306), the cutter has: a miter profile, a groove profile and a tongue profile for cutting a miter. The body has a portion (1352) comprising a recess (1320) disposed between the miter profile of the cutter and an end of the body. The recess defines a flat indexing surface (1326) protruding radially outwards from a portion of the body. When the shaper cutter head is rotated about the longitudinal axis, the body defines a body sweep (1360). The flat indexing surface is recessed from the body sweep.

A COMBINATION DRILL BIT AND BIT DRIVER DEVICE
20240227038 · 2024-07-11 ·

A drill bit comprising: a tubular shaft having a cutting tip at a first end and a drive shank at a second end, wherein the drive shank is adapted to engage with a drive motor, and wherein the cutting tip comprises an axially protruding shape. A first flute portion positioned between the cutting tip and the drive shank, wherein the first flute portion includes a first thread with a first sharpened cutting edge in a first helix; and wherein the first end of the cutting tip has a point angle greater than 135 degrees, and the cutting tip includes a cutting surface that joins to the first thread, and wherein the cutting tip act as a bit driver and has a profile, when viewed axially from the first end has one shape type.

AUGER BIT WITH CARBIDE TIP

An auger bit for cutting holes. The auger bit includes a body made of a first material. The body has a first end, a second end configured to be coupled to a power tool, a flute, and a longitudinal axis extending centrally through the body. The auger bit also includes a cutting tip made of a second material different from the first material. The cutting tip is coupled to the first end of the body. The cutting tip includes a first shoulder having a first spur, a first main cutting edge, and a first side cutting edge. The cutting tip also includes a second shoulder opposite the first shoulder and having a second spur, a second main cutting edge, and a second side cutting edge. The cutting tip further includes a center spur positioned between the first shoulder and the second shoulder and on the longitudinal axis.

Wood-Drilling Device, Wood-Drilling System, and Method for Producing a Wood-Drilling Device
20240286309 · 2024-08-29 ·

A wood-drilling device includes at least one drill shank, at least one drill tip, and at least one cutting body. The cutting body has at least one cutting wing, wherein at least one of the cutting wings has a cutting surface, which is arranged on a base side facing towards the drill tip. The cutting surface is formed by at least two mutually adjoining cutting partial surfaces which are angled away from a drill plane, oriented perpendicular to the rotation axis, in the direction of the drill shank and which are angled to each other at an angle and each have an angle to the rotation axis different from 0?.

Wood-Drilling Device, Wood-Drilling System, and Method for Producing a Wood-Drilling Device
20240286309 · 2024-08-29 ·

A wood-drilling device includes at least one drill shank, at least one drill tip, and at least one cutting body. The cutting body has at least one cutting wing, wherein at least one of the cutting wings has a cutting surface, which is arranged on a base side facing towards the drill tip. The cutting surface is formed by at least two mutually adjoining cutting partial surfaces which are angled away from a drill plane, oriented perpendicular to the rotation axis, in the direction of the drill shank and which are angled to each other at an angle and each have an angle to the rotation axis different from 0?.

BORING TOOL
20240269754 · 2024-08-15 ·

A boring tool includes a coupling portion, a shank, and a cutting portion. The shank further includes a torsion release neck, having a smaller diameter cross section than a first end of the shank and a second end of the shank, a first transition to the first end of the shank, and a second transition to the second end of the shank. A torsion release neck has a lower polar moment of inertia than other portions of the boring tool so that it may guide torsional loading and shear stresses in the boring tool away from the cutting and coupling portions to improve the durability of the boring tool as a whole.