Cable,
I have always used full blades (2) in a cone chuck or a C1 chuck. I have found 2 are less likely to hang up and also usually 1 pass does the job. Many a time using 1 blade (not being able to get by a bad joint or other) has dove into the roots and hung me. I am not a sectional man, never used one and am not running them down. The guys here that have them it seems I can set up my machine have the sewer cleaned and be gone long before they are. After 65 years no need to change.
Wilson's Roto-Rooter
Hannibal, Mo
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