Century Drill & Tool 24216 — 1/4-inch x 4-inch black oxide drill bit, made from high-speed steel and designed for jobber length applications:

Key Features

• Quick-Cut Point (135°):
  • Self-centering tip
  • Penetrates faster with less pressure
  • Prevents walking or wandering at the start
• Black Oxide Finish:
  • Enhances wear resistance
  • Retains lubricants for smoother drilling
  • Offers up to 8x longer life than standard 118° bits 
• High-Speed Steel (HSS):
  • Durable and heat-resistant
  • Suitable for repeated use
• Jobber Length:
  • Standard length for general-purpose drilling
  • Compatible with handheld drills and drill presses

Specifications

• Size: 1/4 inch (Decimal Equivalent: 0.250 inch)
• Overall Length: 4 inches
• Material: Industrial-grade high-speed steel (M2 grade)
• Finish: Black oxide
• Point Angle: 135° Quick-Cut Point
• Shank Type: Straight
• Flute Type: Quick Cut
• Standard: Aerospace NAS 907-B
• Made in: USA

Applications

This drill bit is ideal for:

• Metals:
  • Mild steel
  • Flat bar
  • Angle iron
  • Tubing
• Wood:
  • Softwood and hardwood
• Plastics:
  • PVC
  • Acrylic
  • Polycarbonate

Recommended for:

• Construction
• Automotive repairs
• DIY projects
• Maintenance and fabrication tasks