Hertel C.402.1050 Jobber Drill Bit 10.50 Mm Hss

Product Description

The HERTEL C.402.1050 is a high speed steel jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastics. It carries a 10.50 mm (0.4134 inch) diameter, a standard 118-degree point angle, and a black oxide finish that provides light corrosion resistance and reduces friction during cutting. The right-hand spiral flute geometry evacuates chips efficiently, helping maintain clean hole entry and exit. This bit is a staple in any machinist, maintenance technician, or fabrication shop where consistent, accurate through-holes are needed in production or repair work.

The C.402.1050 is suited for use in benchtop drill presses, floor-standing column drills, and handheld electric drills with appropriate chucks. Its straight-cylindrical shank seats directly into standard three-jaw chucks without an adapter. The 100.00 mm flute length accommodates moderate depth drilling tasks common in general manufacturing, HVAC fabrication, plumbing rough-in work, and electrical panel fabrication. It is sold individually and is appropriate for both shop and field use.

Key Features

• 10.50 mm (0.4134 inch) diameter for precise hole sizing in the 0.4000 to 0.5000 inch range
• 118-degree standard point angle for self-centering on flat stock
• High speed steel construction handles moderate heat buildup during drilling
• Black oxide coating reduces surface friction and provides light rust resistance
• Right-hand, two-flute spiral design promotes efficient chip evacuation
• Straight-cylindrical shank fits standard three-jaw drill chucks directly

Compatibility

Designed as a general-purpose jobber drill bit compatible with any three-jaw chuck drill press or handheld drill accepting a straight-cylindrical shank in the 10.50 mm diameter range.

Installation Notes

Always power down and lock out the drill press or disconnect the handheld drill before changing bits. Secure the shank fully in the chuck and tighten with a chuck key before operation. Use cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain hole tolerance. Wear appropriate eye protection per shop safety standards.