KnKut 21-Piece Jobber Length Drill Bit Set 1/16″-3/8″ by 64ths (21KK5)

Description

The KnKut 21-Piece Jobber Length Drill Bit Set 1/16″-3/8″ by 64ths (21KK5) provides essential precision for drilling in challenging materials. This comprehensive set includes 21 fractional drill bits, ranging in size from 1/16″ to 3/8″ in precise 64ths of an inch increments, covering a wide array of common drilling needs. Manufactured in the USA, these bits are crafted from a premium grade Molybdenum high-speed steel, distinguished by its high vanadium content. This advanced material composition, combined with a specialized salt nitride treatment, significantly enhances the bits’ hardness and wear resistance. The salt nitride process penetrates the steel surface, equipping the bits with superior strength to cut through tough materials like stainless steel and titanium alloy with improved efficiency and tool life.

KEY FEATURES AND BENEFITS:

• Comprehensive Size Range: Includes 21 fractional jobber length drill bits from 1/16″ to 3/8″ by 64ths, offering versatility for numerous applications.
• Premium Material Composition: Made from high-grade Molybdenum high-speed steel with high vanadium content for enhanced toughness, wear resistance, and the ability to maintain hardness at elevated temperatures.
• Advanced Salt Nitride Treatment: The bits’ surface is penetrated with salt nitride, increasing hardness and making them highly effective for drilling in challenging materials such as stainless steel and titanium alloy.
• Self-Centering 135-Degree Split Point Tip: Allows for accurate starting without walking, eliminating the need for a center punch or pilot hole and contributing to the creation of rounder, more precise holes.
• Made in USA Quality: Manufactured in the United States, ensuring adherence to high production standards and quality control.
• Optimized Performance in Tough Materials: Specifically engineered to perform effectively in abrasive and hard materials, including stainless steel, titanium alloy, cast iron, and high silicon aluminum.

SPECIFICATIONS:

• Brand: KnKut
• Manufacturer Part Number: 21KK5
• Item Description: 21 Pc. 1/16″-3/8″ Fractional Jobber Length Drill Bit Set
• Cutting Direction: Right Hand
• Number of Flutes: 2
• Finish: Uncoated (Bright)
• Contents: 21 fractional jobber length drill bits in sizes: 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″, 17/64″, 9/32″, 19/64″, 5/16″, 21/64″, 11/32″, 23/64″, and 3/8″.
• Case: Metal case included for storage and organization.

HOW TO USE:

1. Select the Correct Bit: Choose the appropriate drill bit size for your intended hole diameter from the set.
2. Secure the Bit: Insert the drill bit into your drill chuck. For bits 3/16″ and larger, ensure all three jaws of the chuck are tightened firmly to prevent slippage.
3. Prepare the Material: Position the material you intend to drill securely. While a center punch is not required due to the split point tip, ensuring the material is stable is crucial.
4. Apply Cutting Fluid: For best results, especially when drilling metals, apply a suitable cutting oil to the drill bit and the work surface.
5. Set Drill Speed and Pressure: Adjust your drill’s RPMs according to the material’s hardness and the bit size. Larger bits and harder materials generally require lower RPMs, while smaller bits and softer materials can use higher RPMs. Apply consistent, firm pressure to the bit as you begin drilling. The pressure should be sufficient to allow the bit to cut effectively, not just rub.
6. Drill the Hole: Initiate drilling with controlled pressure. Maintain a steady hand and consistent pressure throughout the drilling process. Optimal cutting will produce continuous chip formation for most metals, or small, consistent fragments for materials like cast iron or wood.
7. Clear Chips (if necessary): If drilling deep holes, periodically withdraw the bit slightly to clear chips and allow cutting fluid to reach the cutting edges.
8. Clean Up: Once the hole is complete, carefully remove the bit and clean any debris.

BENEFITS OF USING KNKUT 21-PIECE JOBBER LENGTH DRILL BIT SET 1/16″-3/8″ BY 64THS (21KK5):

• Achieve high-precision holes consistently in a variety of materials.
• Experience extended tool life even when drilling abrasive or hard metals.
• Reduce drilling preparation time by eliminating the need for pilot holes or center punching.
• Benefit from the specialized materials and treatment that allow effective cutting of challenging alloys.
• Gain efficiency with bits that maintain sharpness and cutting ability under demanding conditions.
• Ensure cleaner, more accurate hole geometries due to superior tip design.

FEATURES:

• 21-piece fractional drill bit assortment.
• General-purpose jobber length for standard drilling tasks.
• Made from vanadium-enriched Molybdenum HSS for added durability.
• Salt nitride surface hardening improves bit longevity and performance.
• 135-degree split point design ensures clean, accurate starts without wandering.
• No need for center punching thanks to self-centering capability.
• Produces smooth, accurate, round holes in various materials.
• Excels in drilling stainless steel and titanium alloys.
• Performs well in cast iron, non-ferrous alloys, and high silicon aluminum.
• Effective on copper, plastics (including plexiglass), bronze, and hard rubber.
• Bright, uncoated finish.
• Right-hand cutting orientation.
• Durable metal storage case included.
• USA-manufactured for consistent quality assurance.