GOOD PERFORMANCE-- This mini drill chuck adopts polishing technology on the surface, so it features anti-oxidative, waterproof and anti-.
HIGH QUALITY-- The drill chuck is made of high quality metal, hardness and weresistance, durable in use
WITH CHUCK KEY-- Drill chuck comes with chuck key to adjust the chuck for proper tightness, convenient to install and operate
WIDE APPLICATION-- Drill chunk can be widely used for lathe, electric drill, milling machine and more. The set can help you complete your work quickly
STANDARD SIZE-- JTO drill chuck has standard size, suitable for your devices. Clamping range: 0.3-4mm, outer diameter: 21.5mm/0.85in, brass base size: length: 20mm/0.79in, hole diameter: 3.175mm/0.13in