Precision Twist Drill 5995897 Jobber Drill Bit 45 Hss

Product Description

The PRECISION TWIST DRILL 5995897 is a wire-gauge jobber-length drill bit designed for general-purpose drilling in ferrous and difficult-to-machine metals. Built from high speed steel with a bronze coating, this bit features a 135-degree split point that reduces walking and lowers entry force on hard workpieces. The straight-cylindrical shank seats in standard three-jaw chucks without adapters. Wire size 45 corresponds to a decimal diameter of 0.0820 inches, placing it in the small-diameter range commonly required for pilot holes, tapping prep, and precision through-holes. Licensed HVAC techs, machinists, plumbers, and electricians reach for this size regularly when drilling sheet metal, brackets, and fittings to specification.

This bit is suited for drilling steel, stainless steel, cast iron, superalloys, and titanium in production and field-service applications. The 2.125-inch overall length and 1.125-inch flute length make it a practical choice for hand drills, drill presses, and CNC spindles where a compact, rigid tool is needed. The regular spiral and tapered web configuration support chip evacuation in standard drilling operations without through-coolant.

Key Features

• Wire size 45 diameter: 0.0820 inches for precise hole sizing
• 135-degree split point reduces bit walking and thrust force on entry
• High speed steel construction withstands heat generated in steel and stainless drilling
• Bronze coating provides lubricity and surface hardness for extended tool life
• Web-thinned, tapered web design improves chip flow and reduces torque demand
• Right-hand spiral flute compatible with standard drill drivers and presses
• ANSI-compliant geometry for consistent, repeatable results

Compatibility

Part of the PRECISION TWIST DRILL Series HX10-HX15-HX18. Designed for use in standard straight-shank drill chucks on hand drills, drill presses, and machining centers. Suitable for drilling steel, stainless steel, cast iron, superalloys, and titanium.

Installation Notes

Machinists and trade professionals should secure the shank fully in a properly sized chuck before operation. Ensure the workpiece is clamped or fixtured to prevent rotation during drilling. Use cutting fluid or a suitable lubricant when drilling stainless steel, superalloys, or titanium to manage heat and extend bit life. Inspect the cutting edges for wear before each use, as a dull point increases thrust force and can cause work hardening in stainless and titanium materials.