This black oxide bit set includes 21 pieces designed for extreme durability and long life. It features a Thunderbolt web for incredible strength, parabolic flutes that reduce friction and clear debris, and a 135 split-point tip for accurate starts. Bit sizes range from 1/16 in. to 1/2 in. in 1/64 in. increments, making it versatile for various drilling applications.

• The set includes a variety of bit sizes for versatile applications
• Designed for extreme durability and long life, suitable for heavy-duty performance
• Parabolic flutes reduce friction and clear debris for efficient drilling
• Effective for drilling on curved surfaces and requires less effort for various materials
• Comes in a resilient case for easy storage and transport
• 21-piece set for a comprehensive range of drilling needs
• Compatible with standard drill chucks for versatile use