Engineered with forged high-speed steel, this Diablo Forstner bit set delivers long-lasting sharpness and durability for drilling clean, flat-bottom holes. The double-ground serrated edges minimize splintering and chipping across all wood types for professional-grade results.

• Steep, angled cutting edges produce smooth, flat holes and create chisel-like curls for fast, clean chip removal
• Ultra-sharp spur guarantees an accurate hole without walking on the material
• Forged high-speed steel construction provides a longer bit life and a sharper cutting edge
• Double-ground serrated edges ensure less splintering and chipping during use
• Set includes four essential sizes: 1/2 in., 3/4 in., 1 in., and 1-3/8 in.
• Compatible with chuck sizes of 3/8 in. or larger