Product description: kwb Adapter Shaft 16-30, 1/2" SDS 598400 This high-quality adapter shaft is perfectly suited for HSS-CO bi-metal hole saws with a diameter of 16 - 30 mm. It features a 1/2"-20 UNF thread, allowing for easy and secure attachment of the hole saw. With the included HSS center drill, you can drill precise and clean holes. The adapter shaft is made from robust material, making it particularly durable. The shaft also has a 5/8"-18 UNF thread, which is compatible with hole saws ranging from 32-152 mm in diameter. This gives you the flexibility to use various sizes of hole saws. The kwb adapter shaft offers you easy handling and enables you to carry out your work efficiently. With this accessory, you are well-equipped for your drilling projects. Delivery includes: 1 x kwb adapter shaft 1 x HSS center drill Get the kwb adapter shaft now and make your hole saw drilling easier!.