Diamond Core Drill Bits with M14 Thread for Porcelain Tile Masonry Hole Saw. Diameter: 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 20 mm, 25 mm, 28 mm, 30 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 68 mm, 75 mm, 80 mm, 90 mm, 100 mm, 110 mm, 115 mm, 125 mm, 130 mm, 140 mm, 150 mm, 178 mm, 200 mm. Application: Dry/wet drilling for porcelain tile, wall tile, stoneware, granite, marble, stone, Masonry, brick.. Suitable for an angle grinder M14 or with one adapter here for a drill or cordless screwdriver. Fast and Smooth drilling. Less loss of material. Due to different computer monitors/calibrations, colors may vary slightly from the picture. NORTHERN IRELAND, SOUTHERN IRELAND, SCOTTISH HIGHLANDS, ISLE OF MAN, ISLE OF WIGHT, SCILLY ISLES. Scottish Highlands: FK17-22, G83, IV1-28, IV33-39, KW1-3, KW5-14, PA21-33, PA35-40, PH18-26, PH30-42. Scottish Islands: HS1-9, IV40-51, IV55-56, KA27, KA28, KW15-17, PA20, PA34, PA41-48, PA60-78, PH42-44. Aberdeen: AB all, DD7-11, IV30-32. Islands: GY – Guernsey, IM – Isle Of Man, JE – Jersey, PO30-41 – Isle Of Wight.