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Drill Bits
  • 1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw
  • 1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw
  • 1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw
  • 1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw
  • 1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw
  • 1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw
1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw

1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw

  • 20 - 99 Pieces
    $7
  • 100 - 499 Pieces
    $6
  • >= 500 Pieces
    $5

Customization:

Customized logo（Min.Order: 500 pieces）
Customized packaging（Min.Order: 500 pieces）
Graphic customization（Min.Order: 500 pieces）
View product details

1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Drilling Capabilities: Designed to efficiently drill through hard materials like granite, concrete, marble, and brick using diamond-tipped segments for precision and durability.
  • Versatile Drilling Modes: Supports both dry and wet drilling operations, accommodating environments where water access is limited or preferred for cooling.

Key features

  • 1. Material Technology

    • With diamond-tipped segments and laser-welded construction, efficiently cut through granite, concrete, and marble while maintaining durability under extreme pressure and heat.

  • 2. Interactive Design

    • With a threaded shank design, easily attach/detach the bit to drills or drill presses for quick setup and seamless integration into your workflow.

  • 3. Performance Parameters

    • With a 1-3/8 inch diameter and 5/8 inch depth capacity, precisely drill holes in hard materials without overheating, even during prolonged use.

  • 4. Scenario Solutions

    • Designed for dry or wet drilling, this bit adapts to environments where water isn’t available, ideal for construction and masonry projects requiring precision in granite and similar hard surfaces.

  • 5. Certification Standards

    • Certified to EPR Germany Packing standards, ensuring compliance with EU environmental regulations for sustainable packaging and responsible waste management.

Product details

1-3/8 Inch Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saw

The 1-3/8" Diamond Core Drill Bits are engineered for precision drilling in hard stone, concrete, marble, granite, and brick. Featuring laser-welded diamond segments and a durable black protective coating, these tools excel in both dry and wet applications. Certified to EPR Germany standards, they ensure compliance and reliability for professional and industrial use.

Technical specifications

FeatureSpecificationBenefit
MaterialDiamond-tipped segments, steel coreEnsures sharp cutting edges and structural integrity
CoatingBlack protective layerEnhances heat resistance and durability
Shank Type5/8" threaded shankSecure attachment to drills or presses
ApplicationDry or wet drillingVersatile for environments with/without coolant
CertificationEPR_Germany_PackingMeets stringent European safety standards

Customization guide

Adjustable diamond segment density to match material hardness (e.g., higher density for granite, lower for brick). Compatible with standard drill adapters for customized shank sizes.

Get inspired

Ideal for masonry contractors, construction professionals, and DIY enthusiasts needing precise holes in hard surfaces. Perfect for installing pipes, fixtures, or electrical systems in stone countertops, walls, or floors.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Diamond ConcentrationStandard (80%)+15% (92%)+30% (104%)
Operational Temperature80°C100°C120°C
Core StabilityBasic (5/8" shank)Reinforced shankDual-layer steel core

Supplier's note

  1. Technical Breakthroughs:

    • EPR Certification: Ensures compliance with rigorous German safety and environmental standards.
    • Dry Drilling Capability: The "Dry for Granite" design reduces dependency on coolant, ideal for arid or restricted environments.
    • Laser-Welded Segments: Achieves 20% stronger bond between diamond tips and steel core, extending tool lifespan by 30%.

  2. Optimal Version Selection:

    • Base Model: Best for occasional users (e.g., homeowners drilling brick or soft stone).
    • Advanced Model: Suited for contractors needing frequent use in moderate hardness materials (e.g., marble countertops).
    • Pro Model: Designed for industrial applications (e.g., granite quarrying) where extreme durability and high-speed drilling are critical.

With the Pro Model’s 104% diamond concentration, you can drill through granite 40% faster than traditional bits. Pair its 120°C tolerance with the dual-layer steel core to minimize tool wear in prolonged operations. For dry environments, the Base Model’s reinforced coating prevents overheating without coolant. Choose wisely based on material hardness and drilling frequency!

Frequently asked questions

  • Which diamond core drill bits are best for drilling into granite countertops?

  • How do I maintain diamond-tipped core drills for longevity?

  • What’s the difference between diamond and carbide core drill bits for hard stone?

  • Can these drill bits work on both wet and dry surfaces?

  • Are these diamond core drills customizable for different machines?

  • What certifications ensure the safety of diamond core drills for construction?

  • Which drill bit suits both brick and marble drilling?

  • How do diamond core drills prevent overheating during hard stone drilling?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Diamond Core Drill Bits (Advanced)Heavy-duty drilling in granite/concrete (dry/wet)Diamond-Tipped Segments (ASTM C1363, 12mm thickness ▲)
Laser-Welded Construction (ISO 13399-1)		▲ 30% longer lifespan vs Base ▲
Versatile for dry/wet use
EPR Germany Certified (complies with EU packaging standards)		Higher cost ▲
Requires robust machinery for optimal performance
Diamond Core Drill Bits (Base)Moderate drilling in softer stone/concrete (wet only)Diamond-Tipped Segments (ASTM C1363, 10mm thickness)
Standard Welding (EN 13069)		Cost-effective ▲
Suitable for standard masonry tasks		Limited to wet use ▲
Shorter lifespan vs Advanced ▲
Standard Masonry Drill BitsLight drilling in brick/block (no granite)Carbide-Tipped (ISO 13399-1 compliant)
No diamond segments		Low cost ▲
Lightweight for handheld use		Ineffective on granite (fails ASTM C1363 hardness test) ▲
Rapid wear on dense materials
Wet Drilling Core Bits (Industry Standard)Wet environments (construction sites)Steel Core with Tungsten Carbide (EN 13069)
Requires water cooling		Lower cost than diamond bits ▲Water dependency ▲
Ineffective on granite (ASTM C1363 failure)
Dry Drilling Core Bits (Industry Standard)Dry environments (no water access)High-Speed Steel (ASTM A295)
No diamond segments		No water needed ▲Overheating risk ▲
Ineffective on granite (ASTM C1363 failure)
Carbide-Tipped Drill BitsGeneral-purpose drilling (metal/wood/plastic)Tungsten Carbide Tip (ISO 13399-1)
Non-stone applications		Versatile material compatibility ▲Ineffective on stone (ASTM C1363 non-compliant) ▲
Rapid wear on masonry

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