20Pcs Concrete Drill Bit Set 5mm Alloy Masonry Drill Bit Set Stable Carbide Tipped Tile Drill Bit Cross Head 1/4 Hex Shank Drilling Hole Bit for Concrete Cement Brick Wood (2 Set,3/16'' 5mm,20pcs)

Product Name: 3/16" Tile Drill BitsMaterial: AlloyColor: Black Style: 5mm5mm size: 100mm in total length Shank length: 6.35mmDrill diameter: 5mmParts List:20×Concrete Drill BitNotes:1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color.2.Please allow slight dimension difference due to manual measurement.

• [Premium Alloy Material] The 3/16" Tile Drill Bits is made of alloy and the reinforced head is made of carbide, which can the bit from cracking and prolong using service. The drill bit is harder and longer, and the alloy cross head is more accurate to positioning
• [Rust-Proof and Fast Drilling] The 3/16" Tile Drill Bits surface is coated with electrophoretic paint to rust. It has U-shaped groove, quick to drill holes and dust removal. The 1/4 hex shank can keep drill bit tight and stable in the electric drill
• [Stable to Drill] Before drilling, position the drill by leaving a slight indent in the tip of the drill. It has small cut resistance, stable drilling, neat and smooth opening, no broken edge, no tremor, and easy to chip
• [Widely Uses] This 3/16" Masonry Drill Bits is suitable for concrete, cement, brick, wood, plastic and more. It fits for powder drills, hand drills, bench drills, but not for impact drills. A good tool for general home use and industry projects
• [4 Groove Design] easy drilling center. The surface is coated with electrophoretic paint to stop the drill bit from rusting, abandoning the traditional electroplating process