The Ec/Ed tool holder is made specifically for the WM210v lathe. The tool holder is. 60mm (2.362) wide. Which is 10mm (0.393) wider than the Aa, which gives it better clamping capacity. There is a comparison chart below where you can see the difference between them. Quick Change Tool Post Set has 4 holders for lathes with a center height of no more than 125 mm4.94? Recommended top slide width :55-70mm. Adjustable turning tool height :15mm. Ec Model : S/N:01013, Hole diameter : 18mm. Ed Model : S/N:01014, Hole diameter : 18mm. (Ec is made of steel, Ed is made of stainless steel). Tool post&holder with precision profile-ground gearing. Plenty of working positions foe more tool holders. Adjust height of cutting edge easily and accruately. Change tools in seconds. Accurate repeatabilityis 0.01mm. 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. Q How to choose the right quick-change tool holder for your lathe? A You can choose a model with a tool holder width “Lg” similar to the width of the square tool holder of the lathe. But other parameters also need to be considered. Width of tool holders for different models. Aa/Eb:50mm1.969. Ec/Ed:60mm2.36. Ab:65mm2.559. A:90mm3.54. This item is in the category “Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Equipment\Metalworking Lathes”. The seller is “anruimachine” and is located in this country: CN. This item can be shipped to United States, United Kingdom, Mexico, Germany, Japan, France, Australia.

• Material: Ed (stainless steel)
• Brand: AUIDO
• Chuck Size: 4 in
• Treated Material: Metal
• Machine Type: Metal Lathe
• Max Spindle Speed (RPM): 2001 – 2500
• Distance Between Centers: 10 in – 20 in
• Model: Bed 150-250mm
• Country/Region of Manufacture: China
• Swing Over Bed: 10 in