Item Type: Cutting tool Material: Carbide Set: 60 (left and right) 75 (left and right) 90 Size: 5/16 inch Package List 5 x Cutting Tool 5 x Screw 1 x Wrench 1Versatility, this kit includes 60 turning tool (left and right) for turning, end face, boring, chamfering, thread and Vgroove, 75 turning tool (left and right) for turning, facing, boring and lead angle while 90 turning tool for turning, facing, boring and chamfering. 2Indexable, each cemented carbide cutting blade has a triangular configuration with three identical cutting surfaces. You can use the wrench and screws provided with the kit to remove and rotate the tip. The available multiple cutting surfaces extend the life of the tool, and rotating the drill bit does not change the overall structure of the tool. 3Excellent cutting surface structure keeps of sharpness, straight and uniform carbide inserts that can accelerate the processing speed and produce excellent finish on the processed materials. The design of the carbide cutting surface can withstand higher temperatures than ordinary steel tools. Each carbide tip is coated with tin to provide long life and sharpness. 4And extremely high durability and toughness depends on that each turning tool body is made of highquality hard alloy and coated with nickel to improve durability and robustness. Each part is moistureproof and resistant to rust or corrosion. 5The entire kit is included in a hardwood storage box, the protective box can protect and organize each tool, and easy to stack and store.