Precision Twist Drill 010209 Hss Drill Bit 9/64 in R10B 12 Pack

Product Description

The PRECISION TWIST DRILL 010209 is a high speed steel (HSS) drill bit designed for professional drilling applications in metal, wood, and general construction materials. Built to the R10B style specification with a 135-degree split point geometry, this bit starts on contact without a center punch, reducing walking on hard surfaces. The black oxide finish provides mild corrosion resistance and helps reduce friction during cutting. At 9/64 inches in diameter, it fits standard drill chucks and is suited for precision hole work in tight-tolerance applications.

This drill bit is packaged in a 12-count pack, making it a practical choice for shop stock, field kits, or high-volume production drilling. It is appropriate for use by machinists, pipefitters, electricians, HVAC technicians, and general tradespeople who require a reliable HSS bit for repetitive drilling tasks. The split point tip is especially useful when drilling into steel plate, conduit, pipe, or sheet metal where bit wander is a concern.

Key Features

• 135-degree split point tip starts on contact, no center punch required
• High speed steel construction handles heat generated in metal drilling
• Black oxide finish reduces friction and provides mild corrosion resistance
• R10B style geometry for consistent, repeatable hole sizing
• 9/64 inch diameter fits standard drill chucks
• 12-count pack supports shop stocking and field use

Compatibility

Designed as a standard 9/64 inch HSS drill bit compatible with any drill or drill press equipped with a chuck sized to accept this shank diameter. Suitable for use in corded or cordless drills used across HVAC, electrical, plumbing, and general mechanical trades.

Installation Notes

Secure the bit fully in the chuck before operating the drill. Use appropriate cutting fluid or lubricant when drilling hardened steel to extend bit life and reduce heat buildup. Wear eye protection and secure the workpiece before drilling. Dispose of worn bits properly, as dull HSS bits increase heat and risk of breakage.

Technical Specifications

• Drill Bit Size: 9/64 inches
• Material: High Speed Steel (HSS)
• Point Angle: 135 degrees
• Point Type: Split Point
• Style: R10B
• Finish: Black Oxide
• Package Quantity: 12 per pack
• Unit of Measure: Pack

Standard Information

• Brand: PRECISION TWIST DRILL
• Manufacturer Part Number: 010209