KnKut 21pc Left Hand Jobber Drill Bit Set 1/16"-3/8" by 64ths (21KK6)

The KnKut 21pc Left Hand Jobber Drill Bit Set 1/16"-3/8" by 64ths (21KK6) is a specialized and essential tool for effectively addressing broken studs, bolts, and fasteners. This comprehensive set includes 21 precision drill bits, ranging in size from 1/16" to 1/4" in precise 64ths increments. Engineered with a unique left-hand twist, these bits are specifically designed to be used with your drill motor in reverse. This clever design can often cause the broken stud to loosen as you drill, potentially eliminating the need for additional extraction tools.

KEY FEATURES AND BENEFITS:

• Designed for Broken Fastener Removal: Specifically engineered with a left-hand twist to assist in loosening broken studs or bolts when operated in reverse.
• High-Quality Material: Made from premium Molybdenum high-speed steel with high vanadium content for exceptional strength and longevity.
• Enhanced Hardness: Salt nitride treated to increase surface hardness, allowing for efficient drilling in challenging materials like stainless steel and titanium alloy.
• Precise Drilling: Features a 135° Split Point tip that enables immediate contact drilling, preventing bit "walking" and often eliminating the need for a center punch or pilot hole.
• Cost-Effective Performance: Delivers superior drilling performance, leading to a lower cost per hole over the lifespan of the bits.
• Accurate Holes: Designed to produce consistently rounder and more accurate holes for professional results.

SPECIFICATIONS:

• Set Count: 21 Pieces
• Sizes: 1/16" through 1/4" by 64ths
• Material: Molybdenum High-Speed Steel with High Vanadium Content
• Tip Angle: 135° Split Point
• Treatment: Salt Nitride Treated
• Manufacture: Made In USA
• Included: 21pc Left Hand Jobber Drill Bit Set and metal storage case.

HOW TO USE:

1. Select the Correct Bit Size: Choose a drill bit that is slightly smaller than the diameter of the broken stud or fastener you intend to remove.
2. Insert Bit into Drill: Securely place the selected left-hand drill bit into your drill chuck.
3. Set Drill to Reverse: Crucially, ensure your drill motor is set to operate in reverse mode. These bits are designed to function correctly only when spinning counter-clockwise.
4. Position and Begin Drilling: Place the tip of the drill bit directly onto the center of the broken stud. Apply steady, moderate pressure and begin drilling.
5. Observe and Continue: As you drill, the left-hand rotation may grip the broken stud and cause it to turn counter-clockwise, effectively loosening it. If the stud loosens, continue drilling slowly until it can be removed.
6. Clean Up: Once the stud is removed, clean any debris from the area.

BENEFITS OF USING KNKUT 21PC LEFT HAND JOBBER DRILL BIT SET 1/16"-3/8" BY 64THS (21KK6):

• Offers a streamlined solution for removing broken fasteners without needing extractors.
• Left-hand twist design may loosen studs as you drill, saving time and effort.
• Drills through hard materials with ease, thanks to the salt nitride treatment and high-grade steel.
• Reduces the need for pre-drilling or pilot holes due to the 135° Split Point tip.
• Minimizes tool replacement costs by maintaining sharpness and performance over time.

FEATURES:

• Precision ground flutes for efficient chip evacuation.
• Specifically engineered for counter-clockwise rotation to engage broken fasteners.
• Gold surface treatment on body and clearance for maximum lubricity during drilling.
• Jobber length provides a balance of reach and rigidity for general purpose drilling.
• Designed to resist premature wear when drilling challenging alloys.
• Comes in a sturdy, organized metal index case for convenient storage and transport.