AT Screw Machine Length Drills

Alfa Tools manufactures screw machine length drills—specialized, short-length twist drills designed for superior rigidity, accuracy, and extended tool life in CNC lathes, Swiss-type screw machines, turret lathes, and other precision drilling applications. Approximately 30–40% shorter than standard jobber length drills, these drills offer increased stiffness to prevent drill wander, reduce deflection, and achieve tighter hole tolerances (±0.001"–0.002" compared to ±0.003"–0.005" for jobber drills). This makes them ideal for precision machining, automated production, and close-tolerance work. Featuring 135° split point geometry (Blitz Bits), heavy-duty web construction, and available in HSS (M2), cobalt (M42), and NAS Type C specs, Alfa Tools screw machine drills excel in CNC machining centers, automatic screw machines, production drilling, precision manufacturing, aerospace work, and any application where accuracy, rigidity, and consistent results are critical.