Main Features:
● Must-have accessory set for power drills and impact drivers
● Extensions in lengths 6， 4， 2 inch for superior access for hard-to-reach fasteners
● Strong permanent magnets hold bits securely in place， accepts all 1/4 inch hex-shank bits
● 1/4 inch quick-change hex shanks fit all power drills， 1/4 inch impact drivers and hand-held drivers
● Hardened tempered tool steel with chrome-finish holders manufacturer's lifetime warranty