3 Review(s)

Feature:1.These ceramic drill bits along with large clearance hole facilitate the entrance of cooling water and escape of chips.2.Each hole is treated with smooth and accurate surface treatment, and the top oh the hole is thickened to achieve excellent cutting strength.3.Small incision resistance, improve the speed of opening. Easy decoration after slotting, easy chip removal.Two Fixing Modes:Mode 1: Adjustable Plate Obverse Side: You can fix your hole saw with 4 bearing balls, for sizes up to 3-1/4 inches.Mode 2: Adjustable Plate Reverse Side: Place the plate reversely then remove one bearing ball to the bearing hole, you can fix your hole saw with 3 bearing balls, for sizes up to 1-3/4 inches.15 Size Diamond Drill Bits:Material: high quality steelDiamond dust coating Size: 6-50mm/1"-3.15"6mm(1/4"), 8mm(5/16"), 10mm(3/8"), 12mm(1/2"), 14mm(9/16"), 16mm(5/8"), 18mm(11/16")20mm(3/4"), 22mm(7/8"), 25mm/(1"), 28mm(1-3/32"), 30mm(1-1/8"), 35mm(1-1/3"), 40mm(1-1/2"), 50mm(2")Hole Saw Guide Fixture:Material: rubber base + plastic shell + steelMinimum Drill Bit Dimension: 1/8"Maximum Hole Saw Dimension: 3-1/4"Package Includes:1 Pc Hole Saw Guide Jig Fixture15 Pcs Diamond Coated Drill Bits