Power bits made of Cr-V steel, and wear well from professional treated. 
Face treated by special technical to prolong use life. 
Combined with 5pc masonry drill bits for drilling in brick, cinder block and tile.
With removable storage and kept in plastic box.
29pc kit, included: 

5pc masonry drill bits: 4-5-6-8-10mm;
24pc 6.35x25mm power bits:
Philips 2X#1,3X#2,3X#3;
Torx:T10,T15,T20,T25,T27,2xT30,T40;
Hex:1.5,2.0,2.5,3.0,4.0,5.0,5.5,6.0mm