Groz 19mm Boring Bar** AB6388-256 Column diameter: 92 mm

Column diameter: 92 mm

Just select the tip with opening that most closely fits locking strip

5mm (29/64")

• No flushing required when switching from other synthetic engine oils or conventional engine oils

Flowmaster's American Thunder® Crossmember-back exhaust system for the 73-87 GM C10/C20

Groz 19mm Boring Bar** AB6388-256 Column diameter: 92 mmManufactured from selected steel these boring bars are accurately machined. Bars incorporate broached holes that accept standard high speed steel or carbide toolbits conveniently. Bars are supplied with an allen key but without toolbits. Boring Bar Length: 9 1 4 inch (235mm) Boring Bar Diameter: 3 4 inch (19mm) Holder Length: 3 3 4 inch (95mm) Square Size: 1 inch (25mm) Tool Bit Size: 5 16 inch