Boring Bar
C-6 grade Carbide Tipped Boring Bars are designed for general purpose boring in steel and alloys. Ideal for flat bottom boring without changing tool. Made of high quality alloy steel for greater rigidity. Precision ground shanks fit standard holders. Offset taper to provide rigidity at cutting point. Minimum bore sizes come in three lengths.
Boring Bars page 292
Boring Bars - Carbide Tipped - Wooden Stands page 292