Hertel C.E13.0714 Extra Length Cobalt Drill Bit

Product Description

The HERTEL C.E13.0714 is an extra length cobalt drill bit designed for demanding metal drilling applications where standard-length bits cannot reach. Built from cobalt high-speed steel with a bright, uncoated finish, this bit delivers heat and wear resistance without the added cost of surface coatings. It measures 8 inches in overall length with a 5.5-inch flute length and a 0.2812-inch diameter. The 135-degree split-point tip reduces walking on entry and requires no center punch on most materials. Licensed machinists, tool-and-die workers, pipefitters, and maintenance mechanics reach for this bit when deep-hole work is required on structural steel, stainless, and other hard alloys.

This bit fits general-purpose drilling tasks in fabrication shops, mechanical rooms, and field service environments. The extra overall length makes it well suited for drilling through thick structural members, deep flanges, or stacked material where a jobber-length bit would bottom out in the chuck before reaching full depth. The 2-flute geometry clears chips effectively in through-hole and blind-hole operations. It is sold individually and is appropriate for use in standard drill presses, magnetic base drills, and hand-held electric drills with appropriate speed and feed control.

Key Features

• Cobalt high-speed steel construction for elevated heat and wear resistance in hard metals
• 135-degree split-point tip reduces walking and eliminates the need for a center punch on most surfaces
• 8-inch overall length provides reach for deep structural drilling applications
• 5.5-inch flute length promotes efficient chip evacuation in deep-hole work
• Bright, uncoated finish for general-purpose use across a wide range of workpiece materials
• 2-flute design suits both through-hole and blind-hole drilling in metal

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard 3-jaw drill chucks on drill presses, magnetic base drills, and hand-held electric drills accepting a 0.2812-inch shank diameter.

Installation Notes

Secure the bit fully in the chuck and verify concentricity before beginning a cut. Use cutting fluid or a suitable coolant on hard alloys to extend tool life and reduce heat buildup. Set spindle speed appropriate to the workpiece material and bit diameter per standard machining reference tables. Inspect the cutting edges before each use and remove the bit from service if chipping or dulling is observed.