Hertel C.402.1750 Jobber Drill Bit 17.50 Mm Hss

Product Description

The HERTEL C.402.1750 is a high speed steel jobber-length drill bit designed for general-purpose metal drilling in production and maintenance environments. It measures 17.50 mm (0.6890 inches) in diameter with a 194 mm overall length and a 143 mm flute length. The 118-degree standard point angle is the industry benchmark for drilling into mild steel, cast iron, aluminum, and similar materials. An oxide finish reduces friction and provides modest corrosion resistance during use. Machinists, tool-and-die shops, and maintenance mechanics reach for this size when through-hole and clearance-hole work demands a reliable, repeatable general-purpose bit.

This drill bit fits standard drill chucks and CNC machining centers that accept straight-cylindrical shanks. At 17.50 mm diameter, it falls within the larger end of the jobber drill range and is commonly used for bolt clearance holes, fixture work, and rough boring operations where a final reamed finish is applied downstream. The right-hand spiral flute geometry evacuates chips efficiently when drilling at appropriate feed and speed rates for the workpiece material.

Key Features

• 17.50 mm (0.6890 inch) diameter for precise hole sizing
• 118-degree standard point angle suits a wide range of metals and general-purpose materials
• High speed steel construction resists heat buildup during extended drilling cycles
• Oxide coating reduces surface friction and provides light corrosion protection
• Right-hand, 2-flute spiral design promotes efficient chip evacuation
• Straight-cylindrical shank fits standard 3-jaw drill chucks and collet holders

Compatibility

Designed as a general-purpose jobber drill for use in any drill press, hand drill, or CNC machining center equipped with a chuck or collet capable of accepting a straight-cylindrical shank at 17.50 mm diameter. Suitable for the 15.00 mm and larger drill size range.

Installation Notes

A licensed machinist or qualified maintenance technician should secure the shank fully in the chuck and confirm runout before drilling. Ensure the workpiece is clamped or fixtured securely before starting the spindle. Select feed rate and spindle speed appropriate to the workpiece material and consult published cutting data for high speed steel tooling. Never force the bit through the material - excessive feed pressure can cause tip breakage or premature wear.