Fangrui Product Details [4486 Drill Chuck]quick-change Keyless Chucks Can Hold A Variety Of Mini Drill Bits Ranging From 1/32inch To 1/8inch, No Need To Change Rotary Tools Frequently. Crafted From Premium Alloy Material, One-piece Construction Design And Built-in Spring Structure Of The 3-jaw Chuck More Stable Than Plastic Models. [brass Collets]fitted With 11 Sizes Of Brass Collets: 0.5/0.8/1.0/1.2/1.6/1.8/2.0/2.2/2.4/3.0/3.2mm, Meet Your Different Needs. Constructed From High-quality Brass, These Collet Nuts Are Robust And To Bending. The 4-claws Design Ensures Powerful Gripping, Firmly Holding Drill Bits In Place. [m8 Metal Collet Nut] This All-metal Nut Not Only Change The Collet, But Also Improves Accuracy And Efficiency Of Use. Made Of Alloy Steel, These Nuts Are Wear-, More , And Stronger Than The Plastic Nut. [drill Chuck Collet Set]brass Collets Set With 4 Claws Design And High Precision Craftsmanship Strong Holding Power, Easily Damaged Rotating Tool Accessories. They Can Change The Clamping Capacity Of An El