About the Replacement 55° Carbide Insert
Though not inexpensive, when you consider you are getting four cutting tools in one and are saving a lot of time in tool sharpening, it is a pretty good deal.
Carbide cutters give good finishes on hard-to-machine materials such as cold-rolled steel. They also work on aluminum, brass, or leaded steels and last practically forever. However, the best finishes on those materials are still achieved with a good, sharp high-speed steel tool.
The Difference between Coated and Uncoated Inserts
|Insert Color||Insert Coating||Insert Style||Insert Size Code||General Purpose|
|Gold||Tin coated||DPMT||21.51-C5C6||Good for steel, stainless steel, and bronze.|
|Silver||Uncoated||DPMT||21.51-MP2||Good for brass, aluminum, and plastic. Has better chip lift.|
This is the 10-pack of replacement carbide inserts for the following tool holders:
Always wear safety glasses when operating machine tools.
|INSCRIBED CIRCLE||0.250″ (6.35 MM)|
|CUTTING EDGE LENGTH||0.254″ (6.45 MM)|
|INSERT THICKNESS||0.094″ (2.38 MM)|
|CLEARANCE ANGLE MAJOR||11°|
|ISO INSERT DESIGNATION||DPMT 21.51|
|CORNER RADIUS||0.016″ (0.4 MM)|
|MINIMUM FEED PER REVOLUTION||0.002″ (0.05 MM)|
|MAXIMUM FEED PER REVOLUTION||0.006″ (0.16 MM)|
|DEPTH OF CUT MINIMUM||0.004″ (0.1 MM)|
|MAX DEPTH OF CUT||0.059″ (1.5 MM)|