5Pcs 16/18.5/20/25/30mm Woodworking Tools Carbide Tip HSS Drill Bit

5Pcs 16/18.5/20/25/30mm Woodworking Tools Carbide Tip HSS Drill Bit Hole Saw Set Product Description Description: Low Resistance: This glass drill bit set adopts large chip removal opening design for lower drilling resistance. Three Blade: This glass drill bit set adopts three blade design, which ensures high efficiency and not easy to collapse. High Speed: The drilling speed is fast, the hole is round and there is no breach, providing better use experience. Excellent Cutting Strength: This glass drill bit provides high torsion and excellent cutting strength and performance. Wide Application: This glass drill bit can be used for marble, ceramic tiles, wall and other stone. Specification: Material: High Speed Steel (HSS) Type: Hole Serration Kit Hole Serration Kit Diameter: about 16mm/0.62'', 18.5mm/0.72'', 20mm/0.78'', 25mm/0.98'', 30mm/1.18'' Length of Hole Serration Kit: approx. 65mm/2.56'' Shank Diameter: approx. 9mm/0.35'' Drilling Depth: 6mm/0.24" Package Included: 5 x drill bits Package included: Five (5) Drill Bits Five (5) Wrench