11Pcs Mini Brass Copper Drill Chuck Collet Bit Set

10Pcs Clamping Diameter: 0.5mm,0.8mm,1.0mm,1.2mm,1.5mm,1.8mm,2.0mm,2.4mm,3.0mm,3.2mm

Overall Length:17mm

Outer Diameter of Shank:4.3mm

Inner diameter: 3mm

1Pc Copper Cap

1. Made of pure copper material, specially heat-treated, high hardness, and durability.
2. Compatible with most rotary tools used in hardware, hobby, home, etc.
3. Change the clamping capacity of the electric grinder and solve the blind zone of the clamping path. Its head is 4 claws, and the holding accessories are more stable. Choose from a wide range of sizes, suitable for more material sanding.