Our high quality 26×400 mm drill bit is perfect for use with electric core drills for drilling on granite, hard stone, concrete, reinforced concrete, and other hard surfaces. Its durable construction will ensure smooth operation of the drills. We also provide bits of other sizes to meet different drilling needs. Size: 26mm X 400 mm. Size: 32 x 400 mm. Size: 44 X 400 mm. Size: 50 mm X 400 mm. Size: 63 x 400 mm. Size: 71 x 400 mm. Size: 82 mm X 400 mm. Size: 102 mm X 400 mm. Size: 110 mm X 400 mm. Size: 132 mm X 400 mm. Size: 180 x 400 mm. Size: 202 mm x 400 mm. Size: 220 mm X 400 mm. Size: 244 mm X 400 mm. Segement Height: 7 mm. Threaded connection: 1 1/4. However, unfortunately there may be occasions when you will need to return items to us. Once we know you have not received your item we will investigate the matter fully both internally and with our carriers. Unfortunately we cannot investigate non receipt deliveries after this time has elapsed. Investigations into lost parcels can take up to 14 days. UK 3 Pin plug and 240v Supplies where applicable. If the items are visibly damaged on receipt, please take some photos or a video to us show that? We will try our best to help you solve this problem. Have a good day! You must take reasonable care to ensure that we receive the goods and the goods are not damaged in transit. All orders placed before 1pm will be dispatched the same day (Monday-Friday Only). Orders are securely packaged to prevent any damage. Items are sent from our UK Warehouse.