
Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The IRWIN INDUSTRIAL TOOL CO 63911 is an 11/64-inch titanium nitride-coated jobber length drill bit designed for metal drilling applications. The titanium nitride coating bonds to the high-speed steel substrate to extend service life and reduce heat buildup during high-cycle use. A heavy-duty web construction adds rigidity through the body of the bit, resisting deflection when driving into ferrous and non-ferrous metals. The 35-degree split point geometry self-centers on contact, reducing feed pressure and preventing work hardening at the entry point. This bit is sold in a pack of 3, making it practical for shop stock or field kit replenishment.
This drill bit is suited for jobber-length drilling tasks in metal fabrication, mechanical contracting, HVAC rough-in, plumbing bracket work, and electrical panel mounting. The shorter cutting lips are engineered to reduce torque demand in high tensile strength materials, which helps maintain control when drilling through structural steel, angle iron, or sheet metal. Electricians, HVAC installers, plumbers, and general tradespeople working with metal substrates will find this bit appropriate for standard through-hole drilling at 11/64-inch diameter.
Designed as a jobber length drill bit compatible with standard three-jaw drill chucks used in corded and cordless drills for metal drilling applications.
This bit is installed by a qualified tradesperson using a standard drill with a three-jaw chuck. Secure the workpiece before drilling to prevent movement. Use cutting fluid or lubricant when drilling thick or hardened metal to extend bit life and manage heat. Inspect the bit for wear or chipping before each use and replace when the cutting edge degrades.
Thanks for subscribing!
This email has been registered!