Specifications: Features: - It cannot be installed directly on the chuck of any cordless or electric drilling rig. The outside needs to be covered with a layer of rubber tube. - Using a flexible drive enables you to take your power tool to the most inaccessible places. - It may be used with polishing kits, drill bits, wire brushes, countersinks, flap wheels, mounted - stones and grinding wheels. - Ideal for intricate work. Model: Flexible Shaft Inner Core Material: Metal Steel, Titanium-plated Spring Color: Black & Gold Length: 98cm / 3.22Ft Inner Core Diameter: 4mm / 0.16" Chuck Diameter: 8mm / 0.31" Product Weight: 85 G / 3.00 Ounces Product Dimensions (L*W*H): 1060*6*6 MM / 41.73*0.24*0.24 Inches Package Include: 1 x Flexible Shaft Inner Core