Tool Bit Angle

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 Single Point Cutting Tool Angle:

 Tool Bit Angle


1. Side Cutting Edge Angle:

The angle between side vanguard and thus the side of the tool shank is known as side leading edge angle. It is often mentioned because the lead angle.

2. End Cutting Edge Angle:

The angle between the highest vanguard and a line perpendicular to the shank of the tool shank is known as end leading edge angle.

3. Side Relief Angle:

The angle between the portion of the side flank immediately below the side leading edge and a line perpendicular to the bottom of the tool.

4. End Relief Angle:

The angle between the top flank and therefore the line perpendicular to the bottom of the tool is named end relief angle.

5. Back Rake Angle:

The angle between the face of the tool and line perpendicular to the bottom of the tool measures on perpendicular plane through the side leading edge . It is the angle which measures the slope of the face of the tool from the nose, towards the rack. If the slope is downward the nose it's negative back rake.

6. Side Rake Angle:

The angle between the face of the tool and a line parallel to the bottom of the tool measured on plane perpendicular to the bottom and therefore the side edge. It is the angle that measure the slope of the tool face from the leading edge , if the slope is towards the leading edge it's negative side rake angle and if the slope is faraway from the leading edge , it's positive side rake angle. If there's no slope the side rake angle is zero.




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