Irwin 5/32″ x 2-9/16″ Left-Hand Cobalt HSS Mechanics Drill Bit (30510)

Description

The Irwin 5/32″ x 2-9/16″ Left-Hand Cobalt HSS Mechanics Drill Bit (30510) is a high-performance tool engineered for a single purpose: the extraction of broken fasteners. Unlike standard drill bits, this specialized bit features a reverse, or counter-clockwise, cutting action. This unique design allows it to drill into the end of a broken screw, bolt, or stud while simultaneously gripping the sides of the fastener. As it drills deeper, the reverse motion applies torque, often allowing the broken piece to be unscrewed and removed without the need for additional extraction tools.

KEY FEATURES AND BENEFITS:

• Left-Hand Spiral: The counter-clockwise rotation is specifically designed to grip and remove broken screws and bolts as it drills, often extracting the fastener in a single step.
• M-42 Cobalt HSS Construction: This 8% cobalt-alloyed steel provides exceptional heat and abrasion resistance, extending the bit’s life and allowing it to drill effectively through tough metals like stainless steel and hardened steel.
• 135-Degree Split Point: This feature eliminates the need for a pilot hole or center punch by preventing the bit from walking, allowing for immediate and accurate drilling.
• Mechanic’s Length: The shorter, more compact design increases the bit’s strength and stability, minimizing breakage during demanding applications.

SPECIFICATIONS:

• Drill Bit Size: 5/32″
• Overall Length: 2-9/16″
• Flute Length: 1-1/4″
• Material: M-42 High-Speed Steel with 8% Cobalt
• Point Angle: 135°
• Shank Type: Cylindrical
• Finish: Gold Oxide

HOW TO USE:

1. Prepare the Workpiece: Ensure the work area is secure and the broken fastener is clean and free of debris. Use proper safety gear, including eye protection.
2. Select the Correct Drill: Choose a left-hand drill bit that is smaller than the diameter of the broken fastener. The 5/32″ size is ideal for smaller screws and bolts.
3. Set Your Drill to Reverse: Insert the bit into a variable-speed drill and set the rotation to reverse (counter-clockwise). This is critical for the extraction to work.
4. Start Drilling: Apply light, steady pressure and begin drilling at a slow speed. The bit will create a hole and, as it bites into the metal, the reverse motion will grip the fastener and begin to unthread it.
5. Remove the Fastener: Once the fastener begins to turn, continue drilling until it is fully backed out of the material. If it does not turn, a hole has been created for a traditional extractor to be used.

BENEFITS OF USING IRWIN 5/32″ X 2-9/16″ LEFT-HAND COBALT HSS MECHANICS DRILL BIT (30510):

• Saves time and effort by often extracting broken fasteners in a single, streamlined step.
• Reduces the need for multiple tools, simplifying the repair process.
• Prevents damage to the surrounding material by precisely removing the broken piece.
• Offers an effective solution for repairing stripped threads or rusted bolts that have snapped off flush with the surface.
• High-quality material ensures the bit can be used repeatedly on a variety of difficult metals without losing its cutting edge.

FEATURES:

• Engineered for reverse drilling and efficient fastener extraction.
• Constructed from M-42 cobalt steel for exceptional heat and wear resistance.
• Short profile offers enhanced stability and lowers breakage risk.
• Self-centering 135-degree tip ensures pinpoint accuracy without walking.
• Gold oxide coating helps dissipate heat and extend tool life.
• Dual-flute system improves debris ejection for cleaner operation.
• Fits standard drill chucks for universal compatibility.