Because the collet is an integral part of the tool, an ACT collet-less boring bar needs only to be loaded and tightened in its toolholder. Standard boring bars require a collet to hold it in the ...

Kennametal’s asymmetric line-boring system increases machining robustness, process speeds, and bore quality, and reduces tool maintenance and handling. Precision is vital in manufacturing many ...

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John Wilkinson's boring bar is probably the largest drill bit in Wales.John Wilkinson was the most important inventor and ironmaster in the history of Wales. Born in Cumbria, he moved to Wales in 1753 ...