The set consists of six augers sizes: 6mm, 8mm, 10mm, 14mm, 18mm and 20mm. Their design produces fast, clean holes, especially when used with cordless drills. These high quality auger bits have Quick Change System shanks, meaning they will fit into any hex or other quick change system including Festool's Centrotec. Suitable for soft and hard wood. The threaded tip pulls the bit into the wood for a faster cut. The deep gullets ensure that waste is cleared away quickly from the cutting edge leaving a clean finish. The auger bit is ground out of one piece of steel to ensure precision with high accuracy to give a long working life. Shanks tempered to DIN 3126-E6,3. 235mm long. Made in Austria.