Diamond Hole Saw Set, Diameter 6-50 mm, Adjustable Hollow Drill Bit, High-Precision Suction Cup Hole Saw with Drill Bit for Glass, Marble, Tile, Ceramic, PVC

< p> 【Diamond Hole Saw】There are a total of 10 sizes to meet different needs. Including 6 mm, 8 mm, 10 mm, 12 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 50 mm. These are made of high-strength carbon steel, making these diamond drill bits durable. 【Easy to Use】High-quality diamond-coated diamond hole saws can increase drilling speed and cut smoothly in just a few seconds without bending the edges. 【Advantage】 With the adjustable drill guide with suction cup, the maximum opening length of the plate is 3-1/4 inches, which is large enough for hole saws of all sizes. 【Special Design]】 The large through holes on the drill bit facilitate the penetration of cooling water and the escape of chips and other particles from the drilled hole. This ensures smooth drilling and facilitates the drilling process. 【Adjustable Hole Saw Guide】: Adjustable hole saw guide with suction cup. Fits all drill sizes up to 3.5 inches in diameter. Removable ball bearing, two modes (mounting with 3 or 4 ball bearings) are available; simply flip the plate.