Irwin 63913 Titanium Nitride Coated HSS Jobber-Length Drill Bit, 13/64 In., 639 Series

Irwin 63913 Titanium Nitride Coated HSS Jobber-Length Drill Bit, 13/64 In., 639 Series

The Irwin 63913 Titanium Nitride Coated HSS Jobber-Length Drill Bit is a 13/64 In. straight-shank bit from the 639 Series, engineered for demanding metal-drilling and jobsite tasks. Machined from premium high-speed steel (HSS) and finished with a Titanium Nitride coating that resists heat and friction, this bit delivers up to 6x longer life than standard HSS bits. A 135° split-point tip keeps the bit centered on the workpiece, eliminating walking for accurate hole starts without a center punch. Whether used for on-site fabrication or shop production drilling, this bit is built to hold an edge through repeated use in steel and other ferrous materials. The 639 Series also includes model 63914 and model 63928 in additional sizes, giving pros and DIYers a matched family of Titanium Nitride coated bits for a range of drilling needs.

Key Features

• Trade Size: 13/64 In. straight shank fits standard drill chucks for jobber-length drilling.
• Durable Construction: Premium high-speed steel (HSS) construction for increased durability on demanding materials.
• Titanium Nitride Coating: Resists heat and friction, providing up to 6x longer bit life than standard HSS bits.
• Precise Drilling: 135° split-point tip eliminates walking for accurate hole starts without a center punch.
• Bit Type: Jobber-length design balances reach and rigidity for general-purpose drilling tasks.
• Straight Shank: Compatible with standard drill chucks for quick bit changes on the jobsite.
• 639 Series Family: Available as model 63913 (13/64 In.), plus models 63914 and 63928 for additional sizes within the same Titanium Nitride coated HSS line.

Technical Specifications

• Warranty: NLW
• Claims Needed: No
• Country of Origin: China
• Battery Included: No
• Power Source: Non-Energy Using

Typical Applications

• Metal Drilling and Fabrication Tasks
• Jobsite and Field Drilling Applications
• Precision Hole Starting without a Center Punch
• Professional and DIY Drilling Projects
• General-Purpose Jobber-Length Drilling Tasks

Why Irwin?

Irwin builds the 639 Series drill bit from premium high-speed steel and finishes it with a Titanium Nitride coating engineered to resist heat and friction, extending usable bit life well beyond standard HSS bits. The 135° split-point tip reflects precision engineering that helps eliminate walking so users can start holes accurately without a center punch. This combination of premium HSS, wear-resistant coating, and split-point geometry makes the 639 Series a dependable choice for professionals who need consistent results shift after shift. Choose Irwin for a durable, reliably engineered drill bit built for demanding jobsite and shop drilling tasks, backed by the matched sizes of the 639 Series lineup.