RELIFE 29071 Precision Mini Drill Chuck 0.01 - 0.13 inches (0.3 - 3.2 mm)
Tip Tool Grip Range Diameter: 0.01 - 0.13 inches (0.3 - 3.2 mm) Shaft Diameter: 0.09 inches (2.35 mm) Compatible Tools: Mini Router, Electric Drill Driver, Flexible Shaft, etc., Specifications: Forward Rotation Brand: Ichinen MTM Tool Division Product Model Number: 29071 Package Size: 4.2 x 4.6 x 2 x 2 x 2 x 2 cm Battery Included: No.