Osg 8623021 Extra Length Cobalt Drill Bit 0.0827 in

Product Description

The OSG 8623021 is a cobalt extra-length drill bit designed for drilling in tough, work-hardening, and abrasion-resistant materials. Built from cobalt high-speed steel with a WXL finish coating, this bit handles elevated cutting temperatures without losing hardness at the cutting edge. The 120-degree split point with R-thinned web reduces thrust and improves centering without a pilot hole. At 2.10 mm (0.0827 inches) in diameter with an 80 mm overall length and a 38 mm flute length, this bit is suited for extended-reach applications where standard-length tooling cannot reach. Right-hand spiral flute geometry clears chips efficiently during through-drilling operations. Licensed machinists, toolmakers, and precision fabricators are the primary users.

This bit is used in CNC machining centers, manual drill presses, and handheld drilling applications where deep or hard-to-access hole locations require extra reach. The 2.00 mm straight cylindrical shank fits standard collets and chucks without modification. The 15xD flute-to-diameter ratio supports deep-hole drilling in stainless steel, high-nickel alloys, titanium, and hardened ferrous materials where standard HSS tooling fails prematurely. It is also suitable for production drilling in aerospace, medical device, and precision instrument manufacturing environments.

Key Features

• Cobalt construction resists heat buildup and maintains edge hardness in hard, work-hardening alloys
• WXL finish coating reduces friction and extends tool life in demanding applications
• 120-degree drill point angle with R-thinned web lowers entry thrust and improves hole location accuracy
• Extra length at 80 mm overall with 38 mm flute length provides reach for deep or recessed drilling
• 15xD flute-by-diameter ratio supports efficient chip evacuation in deep-hole drilling
• Right-hand cutting, regular spiral, two-flute design compatible with standard drilling equipment

Compatibility

Designed as an OEM-style replacement and standard tooling option for applications requiring a 2.10 mm diameter extra-length cobalt drill bit with a 2.00 mm straight cylindrical shank in any collet or drill chuck accepting that shank size.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling professional familiar with speeds and feeds for cobalt tooling in the target material. Secure the straight cylindrical shank fully in the collet or chuck before operation and confirm runout is within acceptable limits. Power down the spindle completely before changing tooling. Do not exceed the recommended cutting parameters for cobalt drill bits in the material being machined, as excessive feed rate or insufficient coolant can cause premature edge failure.