Fangrui Product Details 10 Sizes Of High Quality Brass Collets (0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.4mm, 3.0mm, 3.2mm), M8 Long-tailed Universal Collet, 2pc Metric Stock Nut, Electric Motorized Wrench, L-driver. Brass Collets Hold Bits And Other Accessories Securely In Place, Making It Easy To Damaged Rotary Tool Accessories Without Having To Change The Top Collet. Built-in Spring Ensures Better Retention, Preventing Accessories From Falling Or Flying Out Of Place During Use And Providing Excellent Stability. The Keyless Chuck Holds A Wide Range Of Accessories From 1/32-inch To 1/8-inch Shank Sizes. Brass Collet, Made Of High Quality Brass, Is Wear-resistant And Ruggedness, Not Easy To Break, And Can Hold Fine Drill Bits More Firmly. It Not Only Maintains Stability When Rotating At High Speed, But Also Improves Working Efficiency. Metal Nut, Made Of Alloy Steel, Is Wear-resistant, Ruggedness And Safer Than Plastic Nut. Used In Conjunction With Brass Collets, It Provides Excellent Adaptability And Higher A