Nothing destroys masonry bits like rebar. One solution may be the new SpeedHammer bits, which – according to Irwin – are designed to be twice as durable as standard masonry bits. That makes sense, seeing as how they have twice the usual amount of carbide in their tips. The flute is optimized for dust removal and the shaft has grooves that cut down on friction. The bits come in 6-, 8-, and 12-inch lengths in various diameters.
¦ Price: Starts at $8. 800-464-7946. www.irwin.com.