- Joined
- Oct 31, 2016
- Messages
- 2,649
In comparing R8 to ER32 which is easier to use?
I have read conflicting info on the force necessary to tighten ER chucks with some saying that it takes over 100 ft lbs of torque to tighten and others saying they just need to be tightened with the standard spanner wrench. Looking at the size of a standard spanner wrench no way you would be able to apply anywhere close to 100 ft lbs of torque. So what does it take to tighten ER chucks?
It seems to me that ER chucks and collets would be easier to use. Once you tighten the ER chuck in the quill you are done messing with the draw bar. All of the collet changes happen at the chuck. On the other hand with R8 collets you have to loosen the draw bar and break the collet loose (might have wrong terminology) every time you need to change the tool in the collet or change to a different size collet. What are your experiences with changing ER and R8 collets?
If I go with ER collets I am thinking about buying them from CTC Tools. Anybody have any experience with CTC Tools. I'll get R8 collets off Ebay if I go that route. Cost seems to be about the same.
Thanks for all your suggestions.
Chuck
I have read conflicting info on the force necessary to tighten ER chucks with some saying that it takes over 100 ft lbs of torque to tighten and others saying they just need to be tightened with the standard spanner wrench. Looking at the size of a standard spanner wrench no way you would be able to apply anywhere close to 100 ft lbs of torque. So what does it take to tighten ER chucks?
It seems to me that ER chucks and collets would be easier to use. Once you tighten the ER chuck in the quill you are done messing with the draw bar. All of the collet changes happen at the chuck. On the other hand with R8 collets you have to loosen the draw bar and break the collet loose (might have wrong terminology) every time you need to change the tool in the collet or change to a different size collet. What are your experiences with changing ER and R8 collets?
If I go with ER collets I am thinking about buying them from CTC Tools. Anybody have any experience with CTC Tools. I'll get R8 collets off Ebay if I go that route. Cost seems to be about the same.
Thanks for all your suggestions.
Chuck