Description
The KnKut 15/16″ Fractional SP 1/2″ Reduced Shank Drill Bit (KK12SP-15/16) is a high-performance, USA-made tool engineered for precision drilling in a variety of challenging materials. This drill bit stands out with its innovative design, combining a step point with a split tip, which allows for accurate hole starting without the need for a center punch. Crafted from Hi-Molybdenum tool steel, it’s built to withstand higher drilling temperatures, maintaining its sharpness and integrity even when working with demanding materials like work-hardened stainless steel and titanium alloys. Its 1/2″ reduced shank ensures compatibility with a wider range of drill chucks, making it a versatile addition to any toolkit.
KEY FEATURES AND BENEFITS:
- Self-Centering Precision: The unique Step Point with a 135° Split Tip allows for immediate, accurate hole starts, eliminating bit walking and removing the need for pre-drilling or a center punch.
- Extended Tool Life: The distinctive step drill design actively reduces heat buildup during operation, significantly prolonging the cutting edge’s sharpness and the overall lifespan of the drill bit.
- Versatile Hole Creation: Not only is it perfect for starting new holes, but its design also allows for cleanly enlarging existing holes without causing damage to the drill bit’s point or the workpiece.
- Enhanced Grip Security: Featuring a 1/2″ reduced shank with three flats, this drill bit provides a secure hold in your drill chuck, preventing slippage even during high-torque applications.
- High-Performance Material: Made from Hi-Molybdenum tool steel with a space-age Nitro-Carbonized treatment, it’s optimized for drilling through difficult materials, including hard steel, brass, sheet metal, and especially work-hardened grades of stainless steel and titanium.
SPECIFICATIONS:
- Drill Bit Diameter: 15/16 inches
- Shank Diameter: 1/2 inch
- Shank Type: Reduced with 3 flats
- Point Angle: 135 degrees
- Point Type: Step Point with Split Tip
- Material: Hi-Molybdenum Tool Steel (HSS) with Nitro-Carbonized treatment
- Length Type: Jobber Length
- Included in Purchase: One KnKut 15/16″ Fractional SP 1/2″ Reduced Shank Drill Bit (KK12SP-15/16)
HOW TO USE:
- Secure the Workpiece: Always ensure the material you are drilling is firmly clamped or secured to prevent movement during the drilling process.
- Insert the Bit: Loosen your drill chuck and insert the 1/2″ reduced shank of the KnKut KK12SP-15/16 drill bit into the chuck. Tighten the chuck firmly around the three flats on the shank to prevent slippage.
- Select Appropriate Speed: For harder materials like stainless steel, use a slower drill speed. For softer materials like acrylic or brass, a moderate to higher speed may be suitable. Consult your drill’s manual or a drilling chart for optimal RPMs based on material and drill bit size.
- Apply Steady Pressure: Position the drill bit directly over your desired drilling location. The self-centering step point will prevent the bit from walking. Apply steady, consistent pressure to begin drilling. Avoid excessive force, as the bit’s design is optimized for efficient material removal.
- Maintain Cooling (Optional but Recommended): For extended drilling in very hard materials, consider using a cutting fluid or lubricant to further reduce heat and extend tool life.
- Clear Chips: Allow the flutes to clear chips efficiently. If drilling deep holes, occasionally withdraw the bit slightly to clear accumulated chips.
- Complete the Hole: Continue drilling with steady pressure until the desired depth is reached or the hole is complete.
- Clean Up: Once drilling is finished, safely remove the bit from the chuck and clean any debris from the workpiece and drill bit.
BENEFITS OF USING KNKUT 15/16″ FRACTIONAL SP 1/2″ REDUCED SHANK DRILL BIT (KK12SP-15/16):
- Precision Drilling: Achieves precise, round holes consistently without initial wandering.
- Long-Lasting Performance: Significantly extends operational life by minimizing thermal stress.
- Dual Purpose Functionality: Offers dual functionality for both new hole creation and precise hole enlargement.
- Secure Chuck Fit: Maintains a stable and secure connection within the drill chuck, enhancing safety and control.
- Reliable in Hard Materials: Delivers reliable performance even in challenging, work-hardened materials.
- USA-Made Assurance: Provides the assurance of quality manufacturing from its USA origin.
FEATURES:
- Precision Ground Build: Precision ground point, flutes, and body clearance for superior accuracy.
- Surface Treated for Lubricity: Body and clearance surface treated for maximum lubricity, reducing friction.
- High Temperature Resistance: Engineered to withstand higher drilling temperatures without losing sharpness.
- Optimized for Stainless Steel: Specifically designed for optimal performance in work-hardened stainless steel.
- Titanium Compatible: Can be used effectively in titanium alloy applications.
- Versatile Jobber Length: Jobber length provides a standard, versatile reach for common tasks.






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