5pcs Masonry Drill Bit Set 6mm to 12mm Concrete Drill Bit Set Hex Shank 11.8x9.8x5.9 Inch The installation base made of

The installation base made of plastic which is anti-rust and durable

Fit Tube Size (OD) : 12mm / 1/2"

plastic round tube insert cap

After natural relaxation

1 X Acrylic Sheet

5pcs Masonry Drill Bit Set 6mm to 12mm Concrete Drill Bit Set Hex Shank 11.8x9.8x5.9 Inch The installation base made of1. Made of quality carbide YG6X, the rust resistant treatment and reinforced head prevent the drill from cracking and provide longer service life. 2. Four blade design, small incision resistance and small incision resistance. The U shaped groove drill design can effectively remove debris and improve your work efficiency. 3. 1 4 inch Hex Shank Masonry Drill Bit for most common drills, power drills, hand drills and bench drills, easy to install and