【1.0mm-7.0mm Grip Range】 Total 13pcs collet set; wide griping range: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm.
【Durability & Elasticity】 The shank holders are made of high quality alloy steel, which is strong and wear-resistant. Spring design enables to be exchange easily.
【Stable & Accurate】 Run-out tolerance is 0.01mm. It can hold the shank tightly, and the spring design makes it very easy to exchange.
【Wide Application】 ER11 spring collet chuck is widely used in milling, drilling, and CNC engraving etc.
【Easy to Sort】 Every collet chuck has its own little case with size on it. Easy to distinguish and store.
