Precision Twist Drill 5999641 High-Speed Steel Jobber Length Drill Bit

Precision Twist Drill 5999641 is a professional-grade, high-speed steel (HSS) jobber length drill bit engineered for precision drilling in a wide range of materials including steel, cast iron, aluminum, brass, and other metals. Manufactured by Precision Twist Drill — a trusted name in cutting tool technology since 1882 — this bit delivers consistent performance and tight tolerances in both production and maintenance environments.

Key Features:

• High-Speed Steel (HSS) construction for durability and heat resistance during high-speed drilling operations
• Jobber length design provides the ideal balance of reach and rigidity for general-purpose drilling
• 135° split point tip reduces walking and enables faster penetration without the need for a center punch
• Right-hand cutting flute geometry for efficient chip evacuation and reduced heat buildup
• Precision ground flutes and margins ensure accurate hole sizing and smooth bore finish
• Bright finish for use across a broad range of materials

Precision Twist Drill bits are manufactured to ANSI standards and are a staple in industrial, automotive, aerospace, and MRO (Maintenance, Repair & Operations) applications. The 5999641 is ideal for shops and professionals who demand reliable, repeatable results from every drill.