Description of DEWALT DWA56084 8 Inch 4 5 Inch Material
The product is 1/8x4-1/2" Drill Bit. Easy to use. The product is manufactured in China. Carbide Split Point Tip for Maximum Sharpness. Aggressive Flute Angles for Faster Drilling Speed. No Spin Shank Eliminates Bit Slippage.
Thanks to my knowledge gained in practice, I can say that these industrial drill bits are nothing but a waste of money. They're unable to drill through hard material, and constantly get stuck or break. They're not worth buying, despite the affordable price.