Internal scarfing inserts SQ86-I with 4 cutting edges. Internal scarfing inserts SQ8610 can replace PSR series inserts in a sense. Internal scarfing inserts SQ86-I series are offered customized radius for pipes. Internal scarfing inserts SQ86-I series carbide inserts have concave sphere, low cost, better useful life. We can provide R2"(50.8mm), R4"(11.6mm) etc.

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