Clarkson 4″ Hi-flow cutter

[Nigel McBurney 1Participant @nigelmcburney1]

Where I worked back in the 1960s dedlock cutters on 40 int holders were used on iron castings,it was company practice to grind the 90degree point where the cutting edges met ,back at 45 degrees with a small cutting face width of about 3/16 so there was no sharp point to get chipped ,this practice improved cutter life and finish , I always found the dedlock cutters to be very good and rigid enough to prevent any chatter and of course with ths Clarkson system these threaded cutters were easy to remove.

[Robert SuijlenParticipant @robertsuijlen92163]

Thanks to all of you for responding and taking the effort for helping me with this issue. Just bought one at Sheffield Tooling Company, and yes they are also available in int 30 as Alexander is looking for. Especially thanks to DC31k who came up with the " two 6tpi thread parallel to each other" !

best regards Robert

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