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Aa and Eb are more suitable for small lathes like the 0618, although the WM210V can also be used, but it is not a long term solution.
If you want to use it on a lathe like wm210v, I will recommend Ec or Ed, which are specially made for WM210V.
The width of the tool holder is 60mm (2.362 inch), which is 10mm (0.393 inch) wider than AA and EB, so its clamping ability is better.
There is a comparison chart below where you can see the difference between them.
INTRODUCE
Quick Change Tool Post Set Aa has 4 holders for lathes with a center
height of no more than 110 mm(4.33″).
Recommended top slide width : 45 - 60mm
Adjustable turning tool height :12mm
Lathe swing ： 120-220mm
Aa Model : S/N：01011 ,Hole diameter : 13/18mm
Eb Model : S/N：01012 ,Hole diameter : 13/18mm
Aa and Eb are the same except for their different materials,
Aa is made of steel,Eb is made of stainless steel.
FEATURES
1.Tool post&holder with precision profile-ground gearing.
2.Plenty of working positions foe more tool holders.
3.Adjust height of cutting edge easily and accruately .
4.Change tools in seconds.
5.If features heavy duty cutting and auto drilling.
6.If features external tool-mounting,tool-machining.
7.Accurate repeatabilityis 0.01mm.
8.For manual and NC-lathe.
Q What is the difference between 45# steel and stainless steel?
A Most of the market are 45# steel, it can also meet your basic use requirements, but over time, the screw that fixes the tool may have the problem of deformation, because the hardness is not enough, so we manufactured the stainless steel material, it is harder than the 45# steel material, the service life is longer.
Q How do I choose them?
A If you use it less often, you can choose 45# steel, if you use it more often it is recommended to choose stainless steel, it can accompany you for a longer time.
