Struggling with drill chucks that won't budge? Want a quick solution? Ourrapid bit exchangefeature allows you to drill without putting strain on your hands. Crafted from durable steel and featuring an ergonomic handle, tightening will be a breeze. Kick off your projects with seamless, accurate control and a convenient ratcheting mechanism. How does this dual-head ratchet key simplify your drilling tasks? ✓ Constructed frompremium steelit can endure heavy-duty use ✓ Features an ergonomicanti-slip rubber handlefor a comfortable grip that reduces fatigue ✓ Quick-change ratchet allows forswift tightening and loosening ✓ Dual heads with12.7 mm and 17.5 mm– compatible with most drill chucks Product Specifications MaterialSteel 45, Rubber Weight104 g Length150 mm overall End diameterSmall 12.7 mm, Large 17.5 mm Included in delivery1 x 2-in-1 drill chuck ratchet key