vanki 10 pcs High Quality Titanium Coat Carbide 1.5mm-3.175mm End Mill Engraving Bits CNC Rotary Burrs Set(ST1.5-3.175mm-10Ti) High hardness and long tool lifeIt is coated with titanium It can be used in mold, plastic, copper, stainless steel and other precision metal parts processing Usually, you will get it actually in 9~19 days, If you are in the USA and the item is NOT Fulfilled by Amazon. the item will be sent to you by USPS with shipping information from China. The estimated delivery time offered by Amazon is not the real time. Your patience is highly appreciated. Hope you will receive your item soon and enjoy using it. It is convenient to carry and use About us (vanki), Professional factory, welcome to our store for more choices with best price. What we pursue is your satisfication of our service, not just for our goods.For any reason you are unsatisfied with our product at any time, simply contact support for exchange or refund. we will reply you about any question you ask within 24 hours