Diamond Drill Bit Set 1/4"5/16"3/8"1/2"13/16"1"1-1/6"1-3/8"1-4/7"2" Cutting Dia

Attributes:* Cutting Diameter: 6mm / 0.24" (1/4"), 8mm / 0.31" (5/16"), 10mm / 0.39" (3/8"), 12mm / 0.47" (1/2"), 20mm / 0.79" (13/16"), 25mm / 0.89" (1"), 30mm / 1.18" (1-1/6"), 35mm / 1.38" (1-3/8"), 40mm / 1.57" (1-4/7"), 50mm / 1.97" (2")* Material: Diamond, Industrial Grade Carbon Steel* Finish: Nickel Plated* Guide Jig Fixture* Clamping Range: 4mm-83mm* Total Size: 240mm x 135mm / 9.45" x 5.3" (L*W)* Features: Firm Suction Cup, Premium Ball Bearings* Material: Engineering Plastic, Bearing SteelWhat Is Included:* 10pcs x Diamond Drill Bits* 1pcs x Guide Jig FixtureApplications & Features:--- Precise and Smooth Cuts: Thickened Electroplated Diamonds with Sharp Cutting Edge--- Wide Range of Applications: Glass, Ceramics, Porcelain, Ceramic Tiles, Limestone, Slate, Marble, Light Stone, Fiberglass--- Durable Construction: Industrial Grade Carbon Steel and Nickel Plated Finish--- Easy to Use: Large Clearance Hole for Cooling Water and Chip Removal--- Versatile Guide Jig Fixture: Accommodates Various Sizes of Hole Saws, Firm Suction Cup, Adjustable Ball BearingsUseful Tips:--- Use Coolant (Water) during Drilling--- Operate at Low Speeds and Pressure--- Avoid Drilling Concrete or Going Deeper than 1/2 inch--- Smooth Entry into Material, Avoid Excessive Side Pressure--- Follow Instructions for Proper Use of Guide Jig Fixture