Heat-treated carbon steel provides long life and clean, accurate threads
Rolled threads provide more accuracy than machined threads
Laser-etched marking ensures size identification won't wear off
Set Tailored for most general-purpose applications with premium efficiency
Bosch BDT11S 11-Piece tap and drill set offers superior durability and speed for most general-purpose applications. Laser-etched marking ensures size identification and won't Wear off. Ideal for cutting thread holes into metal and work equally well in plastic drilling applications.