Irwin IR63911 Jobber Drill Bit 11/64 Inches Split Point

Product Description

The IRWIN IR63911 is a jobber-length twist drill bit designed for fast, accurate hole drilling in metal, wood, and plastic. It carries an 11/64-inch drill diameter, a 135-degree split point for self-centering entry without a center punch, and a titanium nitride (TiN) coating that reduces friction and extends cutting life. The overall length measures 3.25 inches, with a flute length of 2.125 inches. Hardness is rated at 80 HRC, indicating a high-speed steel construction hardened for demanding production and service work. This bit is a standard choice for HVAC technicians, electricians, plumbers, and general trade professionals who drill pilot holes, mounting holes, and clearance holes in the field and in the shop.

The IR63911 fits standard 3-jaw drill chucks and is suited for both bench-mounted drill presses and handheld cordless or corded drills. Its jobber-length shank makes it practical for close-quarters work encountered in equipment rooms, electrical panels, and mechanical chases. The 135-degree split point geometry is particularly useful when drilling into harder steel, such as equipment housings, electrical enclosures, and strut channel, without the bit walking off-center.

Key Features

• 135-degree split point eliminates the need for a center punch and reduces walking on hard surfaces
• Titanium nitride coating lowers surface friction and increases bit longevity compared to uncoated HSS
• 80 HRC hardness rating for durability in high-speed drilling applications
• Jobber length at 3.25 inches overall provides versatility across drill press and handheld use
• 2.125-inch flute length supports efficient chip evacuation during drilling
• Sold individually, compatible with standard 3-jaw chucks

Compatibility

Designed as a standard jobber-length drill bit compatible with any drill press or handheld drill accepting a round-shank bit at the 11/64-inch diameter size.

Installation Notes

Secure the bit firmly in the drill chuck before operation and verify the chuck key is removed before starting the drill. When drilling metal, use appropriate cutting fluid or lubricant to reduce heat buildup and extend bit life. Always wear eye protection when drilling. Follow applicable OSHA and trade safety guidelines for rotary cutting tools.

Technical Specifications

• Drill Diameter: 11/64 inches
• Overall Length: 3.25 inches
• Flute Length: 2.125 inches
• Point Angle: 135 degrees
• Point Type: Split
• Coating: Titanium Nitride (TiN)
• Hardness: 80 HRC
• Sold As: Each
• UPC: 042526639111

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR63911