features and benefits:
- high speed steel features a black and gold flute
- heavy-duty web construction for strength and durability
- 135 degree split point begins drilling immediately, minimizing bit "walk"
- 3-flatted shank on 3/16" and above for better chuck grip
- provides accurate drilling without a center punch
irwin offers a complete line of metal twist drill bits, including black oxide, turbo point, titanium nitride, and cobalt drill bits..Irwin black & gold drill bits feature a 135 split point tip for accurate drilling without a center punch.Laser-etched markings for easy identification.High speed steel features a black shank and gold flute.Heavy-duty web construction for strength and durability.135 split point begins drilling immediately, minimizing bit "walk".3-flatted shank on 3/16" and above for better chuck grip.Provides accurate drilling without a center punch.