Irwin 21/64″ x 4-5/8″ Black & Gold Drill Bit w/ Split Point (3019021B)

Description

The Irwin 21/64″ x 4-5/8″ Black & Gold Drill Bit w/ Split Point (3019021B) is a high-performance tool engineered for precision and reliability. Designed as a jobber length, straight shank drill bit, it is part of the Irwin Series 30190, a line known for its quality and efficiency. This bit is made from premium high-speed steel (HSS) and features a distinctive black and gold oxide coating that provides superior corrosion resistance, extending the tool’s lifespan.

KEY FEATURES AND BENEFITS:

• 135° Split-Point Tip: Self-centering design starts drilling immediately, eliminating walking and ensuring accurate hole placement without a center punch.
• Premium High-Speed Steel Construction: Provides strength and longevity for demanding drilling tasks.
• Black and Gold Oxide Coating: Offers excellent corrosion resistance, protecting the bit from rust and wear.
• 3-Flatted Shank: Delivers an exceptional grip in the drill chuck, preventing slippage and improving stability.
• Heavy-Duty Web Construction: Adds strength and durability, suitable for drilling a wide range of materials including steel and wood.

SPECIFICATIONS:

• Model Number: 3019021B
• Product Series: 30190
• Diameter: 21/64″ (0.3281″)
• Overall Length: 4-5/8″ (4.625″)
• Flute Length: 3-5/16″ (3.3125″)
• Material: High-Speed Steel (HSS)
• Finish: Black and Gold Oxide
• Shank Type: 3-Flat Shank
• Point Type: 135° Split Point

HOW TO USE:

• Preparation: Select the appropriate drill and ensure it is in good working condition. Securely insert the 21/64″ drill bit into the chuck. The 3-flatted shank provides a strong, non-slip grip.
• Setup: Mark the exact location where you need to drill. Due to the self-centering split-point tip, a center punch is generally not required for soft or medium-hard materials.
• Drilling: Set the drill to the appropriate speed for the material. Begin drilling with steady, light pressure. The split point engages immediately for a clean start.
• Technique: Maintain consistent pressure and a straight drilling angle. Let the bit do the work. Avoid excessive force to prevent overheating or breakage.
• Finishing: Once the hole is complete, smoothly back the bit out while the drill is running to clear debris. Clean the area and bit before storage.

BENEFITS OF USING IRWIN 21/64″ X 4-5/8″ BLACK & GOLD DRILL BIT W/ SPLIT POINT (3019021B):

• Self-centering 135° split-point tip prevents walking and enables instant drilling starts.
• Premium HSS and black and gold oxide coating ensure excellent corrosion resistance and longer tool life.
• 3-flatted shank offers a secure, non-slip grip for better control and safety.
• Heavy-duty web design enhances strength and reduces breakage risk.
• Versatile for drilling materials from soft wood to tough stainless steel.

FEATURES:

• Laser-etched markings for easy size identification.
• Heavy-duty web construction for increased durability and strength.
• Reduced feed pressure requirement for easier drilling.
• Designed for use with portable drills and drill presses.
• Black and gold oxide finish protects against rust and reduces friction.
• Jobber length suitable for general-purpose applications.
• Suitable for drilling mild steel, high alloy steels, stainless steel, and other materials.