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LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic
LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

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Used  US$8.40
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Product details

Management number 218150266 Release Date 2026/05/03 List Price US$8.40 Model Number 218150266
Category
  1. Industrial & Scientific
  2. Cutting Tools
  3. Industrial Drill Bits
  4. Metalworking & Multipurpose Drill Bits
  5. Step Drill Bits
  • 4-Flute Turbo-Cutting System: Libraton step drill bit set has quad spiral grooves enabling 40% faster chip evacuation than 2-flute competitors, eliminating jams when drilling.
  • Military-Grade M35 Cobalt Core: Our step drill bit for metal is of 5% cobalt alloy withstands 1,450°F heat - 3X lifespan vs normal HSS bits. Perfect for hardened steel, copper alloys, and carbon fiber composites.
  • Nano-AlTiN Armor Coating: The unibit step drill bit is of 89HRC-rated surface with 0.45 friction coefficient outlasts TiN coatings.
  • Universal 1/4" Hex Shank: Each step bit has instant compatibility with multiple tools. Anti-slip grooves prevent chuck slippage even under 35N·m torque.
  • Multiple Step Sizes: The step drill sizes including 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8. The step drill bit includes a storage holder, easy to store and carry.

UPC 630808005701
Set Name 13-Piece Set
Brand Name LIBRATON
Shank Type Hex
Unit Count 13.0 Count
Part Number 90135221
Finish Types Aluminum Titanium Nitride (AlTiN)
Manufacturer LIBRATON
Material Type High Speed Steel with Cobalt Alloy
Tool Flute Type Spiral
Number of Flutes 4
Number of Pieces 13
Cutting Angle String 118 Degrees
Surface Recommendation Metal, Plastic, Wood

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

LIBRATON Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 3/16"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic

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