Widely Used: The 135° fast cutting point is automatically centered and penetrates quickly with less pressure,The drill kit meets all your requirements, including all common size specifications for Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass
Storage: Comes in a plastic container for convenient storage and moving
Premium Material: Manufactured from high speed steel for strength and durability
Process Treatment: Titanium coated surface prevent rusting,which increase the hardness of the drill bit and reduces heat buildup, make the twist drill bit more wear-resisting for longer life