Direction: RightBlack oxidized finish on each handle for rolling style and size. Blades exquisite workmanship, high strength, high strength, stable and durable. Screw: M3.5 x 9 Key: T15 Insert: 16IR AG60 (internal threaded inserts) Cutting direction: right Stroke that the insert can process: 0.5mm-3.0mm Color: black Material: stainless steel Size: tool holder diameter 13mm; Length: 150mm Package Contents: 1 x SNR0013K16 (Internal Tapping Boring Bars)10 x 16IR AG60 (Threaded Inserts)1 x T15 Wrench (Lathe Parts)Only the above package content, other products are not included. Note: The light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.