• For turning Electrical and mechanical wood carving milling chuck connector form 1/2" to 1/4"
• Made of carbide, processing by heat treatment and precise grinding, good flexibility and wear resistance
• High precision, high strength and hardness, tight and stable clamping, good to operate
• Ideal collet or chuck conversion suitable for engraving machine and wood router
• Easy to use, just slide it into your current collet and tighten as usual