Irwin 1-1/8″ x 6″ Silver & Deming Drill Bit (90172)

Description

The Irwin 1-1/8″ x 6″ Silver & Deming Drill Bit (90172) is a professional-grade cutting tool designed for creating large-diameter holes in various materials. This bit is specifically engineered for demanding applications in metal, wood, and plastic, making it a valuable addition to any workshop, body shop, or fabrication environment. Its unique Silver & Deming design features a reduced 1/2-inch shank, which allows for the use of a large 1-1/8-inch bit in standard 1/2-inch drill chucks, effectively expanding your drill’s capabilities. Constructed from premium high-speed steel and finished with a black oxide coating, this drill bit is built for a combination of strength, heat resistance, and protection against corrosion. The 118-degree chisel point tip is a versatile design suitable for general-purpose drilling, ensuring clean and accurate starts.

KEY FEATURES AND BENEFITS:

• Reduced 1/2-inch Shank with Three Flats: This design allows the bit to fit into a common 1/2-inch drill chuck, enabling you to drill large-diameter holes without needing a specialized tool. The three-flatted shank provides a strong, non-slip grip, which is crucial for preventing spin-out during heavy-duty applications.
• Premium High-Speed Steel Construction: The M-7 high-speed steel provides exceptional hardness and heat resistance, extending the tool’s life and maintaining cutting efficiency, particularly when drilling through tough materials like metal.
• Black Oxide Coating: This finish offers a layer of protection against corrosion and rust, which helps to preserve the bit’s condition and performance over time.
• 118-Degree Chisel Point Tip: This tip is a versatile choice for a wide range of materials. It is engineered to create a proper starting point for the drill, reducing the need for a pilot hole in many general-purpose applications.
• Designed for Heavy-Duty Applications: The bit’s robust construction makes it an ideal tool for professionals working in automotive, metal fabrication, and general maintenance, where a reliable and strong cutting tool is essential.

SPECIFICATIONS:

• Product ID: 90172
• Drill Bit Diameter: 1-1/8 inches
• Shank Diameter: 1/2 inch
• Overall Length: 6 inches
• Flute Length: 3 inches
• Point Angle: 118 degrees
• Shank Style: Three-flatted
• Material: High-speed steel (HSS) with black oxide coating

HOW TO USE:

1. Select the Correct Drill: Use a drill with a 1/2-inch chuck that is powerful enough for your intended material. A drill press is recommended for greater control and accuracy.
2. Secure the Bit: Loosen the drill chuck jaws, insert the 1/2-inch shank of the drill bit, and tighten the chuck securely. Ensure the three flat sections of the shank are gripped firmly to prevent rotation.
3. Mark and Position: Mark the location of the desired hole. Position the chisel point of the bit directly on the marked spot.
4. Drill with Proper Speed and Pressure: Start the drill at a slow speed and gradually increase it. Apply steady, firm pressure as you drill. Avoid excessive force, as this can cause the bit to overheat or break.
5. Use Coolant/Lubricant (for Metal): When drilling metal, apply a cutting fluid or lubricant to the cutting area. This reduces friction and heat, extends the life of the bit, and improves the quality of the cut.

BENEFITS OF USING IRWIN 1-1/8″ X 6″ SILVER & DEMING DRILL BIT (90172):

• Ability to drill large holes with a smaller, more common drill.
• The three-flatted shank provides a secure, non-slip grip for safe operation.
• High-speed steel construction ensures longevity and reliable cutting performance.
• Black oxide finish protects the tool from rust and enhances its durability.
• Versatile chisel point is suitable for drilling in multiple types of materials.
• A professional-grade tool built for heavy-duty and consistent use.

FEATURES:

• Silver & Deming drill bit design
• 1-1/8-inch diameter with 6-inch overall length
• 1/2-inch reduced shank with three flats
• Constructed from M-7 high-speed steel
• Black oxide protective finish
• 118-degree chisel point tip
• Right-hand cutting direction
• Compatible with 1/2-inch drill chucks