Ozito PXBDS-220U14

"Makita Impact XPS is new innovation in fastening with insert bits and fastening accessories built for the demands of the professional contractor. The Impact XPS Power Bits are designed exclusively fo more→r use with high-torque impact drivers and are engineered to last up to 90-times longer than standard bits. High-strength steel delivers longer bit life and the precision-fit tip is engineered to prevent ""cam-out"" and stripping. The torsion section of the bit flexes under load to take pressure off of the bit tip for increased durability. The high quality steel construction is engineered for increased durability and features a matte nickel surface for best in class corrosion resistance. Impact XPS …

The MILWAUKEE SHOCKWAVE Impact Duty Carbide Hammer Drill Bits are designed with sharpened carbide to deliver up to 9x longer life and 4x faster drilling into concrete. Engineered with a precision grou more→nd tip, these bits deliver faster starts and less walking in concrete, brick, and block. Wide flute design removes dust faster, reducing heat and delivering more holes per charge. Equipped with a ¼" Hex Shank, Milwaukee SHOCKWAVE Impact Duty Carbide Hammer Drill Bits are the ideal solution for drilling in masonry materials with both impacts and hammer drills/drivers. Available in diameters up to 1/2 inch.

IRWIN Silver and Deming High Speed Steel Fractional Bit is constructed of M-7 high speed steel for high resistance to abrasion during tough drilling applications