The diamond drill bit set from wolfcraft is perfect for use with electric drills for drilling in granite, hard stone, concrete, reinforced concrete, and other hard materials. Thanks to the durable construction and to the high-end finish, these drill bits will drill smoothly through the material. Delivery includes: 4 x diamond drill bits (5, 6, 8, 10 mm in diameter), 1 x guide with 2 suction cups for safety. This is all delivered in a durable plastic storage box.
