About This Accuracy & Longevity -135-degree split point starts drilling immediately, requires less force and eliminates ?쐗alking??across the working surface. Tapered web provides strength, durability, and reduces breakage. Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up. Wide Range of Uses - Drill bits are built for general purpose applications, such as steel/copper/aluminum/zinc alloy/wood/plastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality. Black & Gold Finish - Black and gold finish increases lubricity, supplies corrosion protection and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage. Package & Size: 6- Piece drill bits in a tube. Diameter 1/2 inch, total length 5 inch, working length 4-1/2 inch, 135 degree split point, 3-flat shank. Overview Material : Alloy Steel, High Speed Steel (HSS) Cutting Diameter : 0.5 Inches Finish Type : Gold Shank Type : 3-Flat Cutting Angle String : 135 Degrees
