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2. Milling cutter - Wikipedia

   en.wikipedia.org/wiki/Milling_cutter

   Milling cutters are cutting tools typically used in milling machines or machining centres to perform milling operations (and occasionally in other machine tools).They remove material by their movement within the machine (e.g., a ball nose mill) or directly from the cutter's shape (e.g., a form tool such as a hobbing cutter).

3. Cutting tool (machining) - Wikipedia

   en.wikipedia.org/wiki/Cutting_tool_(machining)

   Also, the tool must have a specific geometry, with clearance angles designed so that the cutting edge can contact the workpiece without the rest of the tool dragging on the workpiece surface. The angle of the cutting face is also important, as is the flute width , number of flutes or teeth, and margin size .

4. Built up edge - Wikipedia

   en.wikipedia.org/wiki/Built_up_edge

   The built up edge effectively changes tool geometry and rake steepness. It also reduces the contact area between the chip and the cutting tool, [1] leading to: A reduction in the power demand of the cutting operation. [1] Slight increase in tool life, since the cutting is partly being done by the built up edge rather than the tool itself. [4]

5. Rake angle - Wikipedia

   en.wikipedia.org/wiki/Rake_angle

   Zero rake: A tool has a zero (or neutral) rake when the face of the cutting tool is perpendicular to the cutting edge at inner side. Negative rake: A tool has a negative rake angle when the face of the cutting tool slopes away from the cutting edge at outer side. Positive rake angles generally: Make the tool more sharp and pointed. This reduces ...

6. Broaching (metalworking) - Wikipedia

   en.wikipedia.org/wiki/Broaching_(metalworking)

   The leading (cutting) edge of the broach has a contour matching the desired final shape. The broach is mounted in a special tool holder that allows it to freely rotate. The tool holder is special because it holds the tool so that its axis of rotation is inclined slightly to the axis of rotation of the work.

7. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   An adjustable wood bit meant for use in a brace. An adjustable wood bit, also known as an expansive wood bit, has a small center pilot bit with an adjustable, sliding cutting edge mounted above it, usually containing a single sharp point at the outside, with a set screw to lock the cutter in position. When the cutting edge is centered on the ...