Grizzly T10439 Carbide Insert Boring Bar Set, 4-Piece

These right-hand indexable solid steel Boring Bars use 1/4-Inch and 3/8-Inch, 80Degree diamond inserts and feature a negative 7Degree end and side cutting angle. Includes 3/8-Inch x 6-Inch, 1/2-Inch x 7-Inch, 5/8-Inch x 8-Inch and 3/4-Inch x 10-Inch boring bars. Set comes with Torx wrenches and fitted aluminum case with handle. Uses CCMT21.51, CCGT21.51, CCMT060204, or CCGT060204 for small inserts; and CCMT32.51, CCGT32.51, CCMT09T304, or CCGT09T304 for large inserts.