Precision Twist Drill 5999964 High-Speed Steel Jobber Length Drill Bit Set

Precision Twist Drill 5999964 is a high-speed steel (HSS) jobber length drill bit set engineered for reliable, accurate drilling in a wide range of materials including steel, iron, aluminum, wood, and plastics. Manufactured by Precision Twist Drill — one of America's most trusted names in cutting tools — this set delivers consistent performance for both professional tradespeople and serious DIYers.

Key Features:

• High-speed steel (HSS) construction for durability and heat resistance
• Jobber length design provides a versatile balance of reach and rigidity
• Precision-ground flutes for efficient chip removal and reduced heat buildup
• 135° split point tip reduces walking and enables faster penetration without a center punch
• Black oxide finish for added corrosion resistance and lubricity
• Suitable for use on steel, cast iron, aluminum, wood, and most plastics
• Manufactured to strict tolerances for accurate, consistent hole sizing

Precision Twist Drill has been producing professional-grade cutting tools in the United States for over a century. The 5999964 set is ideal for machine shops, maintenance professionals, and industrial applications where reliable hole quality is essential.