Description
The KnKut 8pc Silver & Deming 1/2″ Shank Drill Bit Set 9/16″-1″ (8KK12) offers a precise and effective solution for drilling larger diameter holes in a variety of materials, particularly challenging metals. This premium set is engineered to provide reliable performance for professional and serious DIY applications. Each drill bit in the set is meticulously crafted from a high-grade Molybdenum high-speed steel, featuring a high vanadium content for enhanced durability and edge retention under demanding conditions.
KEY FEATURES AND BENEFITS:
- Comprehensive Large Hole Drilling: An 8-piece set covering common larger fractional sizes from 9/16″ to 1″, providing versatility for various projects.
- Superior Material Composition: Manufactured from high-grade Molybdenum high-speed steel with high vanadium content for exceptional strength and wear resistance.
- Enhanced Surface Hardness: Salt nitride treated surface penetrates the tool, providing increased hardness specifically designed for drilling tough materials like stainless steel and titanium alloy.
- Precise Self-Starting: The 135-degree split point tip allows for immediate and accurate penetration without requiring a center punch or pilot hole, reducing setup time and improving hole quality.
- Secure Chuck Grip: Features a 1/2″ reduced shank with three flats on each bit, ensuring a firm, slip-resistant hold in standard 1/2-inch drill chucks.
- Reduced Friction & Extended Life: Gold surface treatment provides maximum lubricity, minimizing friction and heat during drilling, which contributes to longer tool life and smoother operation.
- Trusted Quality: “Made In USA” ensures adherence to high manufacturing standards and reliable performance.
SPECIFICATIONS:
- Set Pieces: 8 pieces
- Sizes Included: 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″, 1 INCH (1 piece each)
- Shank Diameter: 1/2 inch (reduced shank)
- Point Angle: 135 degrees
- Material: High-grade Molybdenum High-Speed Steel with high vanadium content
- Surface Treatment: Salt Nitride Treated, Gold Surface Treated
- Country of Origin: USA
- Items Included in Purchase: 8 drill bits (one of each specified size), typically shipped in a protective plastic storage case.
HOW TO USE:
- Select the Correct Bit: Identify the desired hole size from the set (9/16″ to 1″).
- Secure in Chuck: Insert the 1/2″ reduced shank of the chosen drill bit into your drill chuck. Ensure the three flats are properly engaged by tightening the chuck firmly to prevent slippage.
- Prepare Workpiece: Secure your material firmly to prevent it from moving during drilling. For metal, mark the drilling location. A center punch is not required due to the split point.
- Set Drill Speed: Adjust your drill’s RPM according to the material being drilled. Slower speeds are generally recommended for harder metals and larger diameter bits to prevent overheating.
- Apply Even Pressure: Begin drilling by applying steady, consistent pressure. Allow the drill bit to do the cutting; excessive force can lead to premature wear or breakage.
- Use Cutting Fluid (Recommended for Metal): For drilling metals, especially tough alloys, apply a suitable cutting fluid to the drilling area. This helps cool the bit, lubricate the cut, and clear chips, significantly extending bit life and improving cut quality.
- Clear Chips: Periodically back the bit out of the hole to clear chips, particularly when drilling deep holes. This prevents chip buildup and reduces friction.
- Cool Down: If the bit becomes excessively hot, pause drilling to allow it to cool down. Do not quench a hot HSS bit in cold water as this can cause it to become brittle.
- Clean After Use: After drilling, clean the drill bit and return it to its storage case to protect its cutting edges.
BENEFITS OF USING KNKUT 8PC SILVER & DEMING 1/2″ SHANK DRILL BIT SET 9/16″-1″ (8KK12):
- Provides accurate, clean holes due to precision grinding and a self-centering 135-degree split point.
- Offers extended service life, even when drilling abrasive and high-strength materials, thanks to its advanced material and surface treatment.
- Eliminates the need for pre-drilling or punching, saving time and effort during hole creation.
- Maintains superior performance at higher drilling temperatures, reducing the risk of dulling during demanding tasks.
- Ensures a stable and reliable drilling experience by securely holding within the drill chuck, minimizing vibration and improving safety.
- Delivers consistent results across various metal types, from standard steels to exotic alloys like titanium.
- Represents a long-term value investment for serious users due to its robust construction and durability.
FEATURES:
- Eight piece fractional drill bit assortment
- 1/2-inch reduced shank on all bits
- Three machined flats on each shank
- Manufactured from Molybdenum High-Speed Steel
- High vanadium content in steel composition
- Salt nitride surface penetration treatment
- Gold surface finish for reduced friction
- 135-degree split point tip geometry
- Precision ground cutting edges
- Designed for drilling various metals
- Suitable for stainless steel and titanium alloys
- Comes in a dedicated storage case
- Made in the United States
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