This 3PC Drill Chuck Adaptor and Key set from Amtech is an essential addition to your drilling tools. Designed for use with SDS plus adaptors, this set is perfect for businesses, offices and industrial environments. The durable construction ensures long-lasting use, while the easy-to-use design allows for quick and efficient bit changes. With a brand new, unused status, this set is ready to be put to work. Whether you're drilling into concrete, brick, or stone, this Amtech Drill Chuck Adaptor and Key set will help you get the job done quickly and efficiently.