Internal or External External Hand of Holder Right Hand Maximum Depth of Cut Decimal Inch 021 Minimum Groove Width Decimal Inch 0118 Overall Length Decimal Inch 4921 Toolholder Style MGEVR Insert Compatibility MGMN300M, MRMN300M Shank Height Decimal Inch 075 Shank WidthDiameter Decimal Inch 075 Through Coolant No.