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Diamond Cut Tool Holders on MR-2540 CNC Lathe
1.Right-Hand Tool Holder 
For rims with the lip, the right hand tool is the best choice since it can easily reach the corner of the inside lip for machining process.
Part No. MVJNR-16-3D
The Right Hand Tool Holder

2. Neutral Tool Holder 
For flat rims without lip, the neutral tool holder is the best choice for its simplicity.
Part No. MVVNN-16-3D  
The cutting tip of the neutral tool holder is at the very center.
3.  Left-Hand Tool Holder 
For rims on which there is a rising center hub the left hand tool holder should be used so that the tip of the tool is able to cut the cone.
  
Part No. MVJNL-16-3D
The left hand tool holder is needed only on those rims with rising center hub.
4. Round Bit Tool Holder 
 For rims with very curved profile, the round bit tool holder can be beneficial. 
Part No. SROCN20-10D
The round bit tool holder is able to machine the curved profile.
5. Dog Bone Style Tool Holder (6” long)  
For rims with very curved profile, the round bit tool holder can be beneficial.
  
Part No. GHDL-2588
The round bit tool holder is able to machine the curved profile.
6. Boring Bar Style Tool Holders     
Part No.  S16T-SVMCR-3
Due to the design of the boring bar, the cutting tip is located at center of the tool holder. A shim block is needed to raise the cutting tip to the center line of the lathe.
For some deep rims, the regular right hand tool holder (6” long) is too short. Then you need to use 12” long boring bar tool holder to reach deeper positions.
  
  
7. Boring Bar Style Tool Holder 
In some cases, one may machine the back side of the rim for which an angled boring bar will be needed for better finishes.
Part No.  S16T-SVQCR-3
The first tool on left is a 12” long boring bar with negative 17.5 degree angle so that it is chosen to machine straight surface.
8. Lip-Cutting Tool holder
Quite often, one must refinish the back side of the lip, one side or even both sides as shown in above picture.
  
Part No.  2540-Lip Tool
The special lip cutting tool holder is needed when someone is to cut the lip. The lip cutting tool holder must be locked with three locking bolts as shown.