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    Flush Trim Router Bit

    Flush Trim Router Bit

    SIZE D H
    1/4*1/4 6.35  20 
    1/4*5*16 8.00  25 
    1/4*3/8 9.52  30 
    1/4*1/2 12.70  30 
    1/2*1/4 6.35  20 
    1/2*5/16 8.00  30 
    1/2*3/8 9.52  30 
    1/2*1/2 12.70  30 
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    Rounding Over Router Bit

    Rounding Over Router Bit

    SIZE D R H B
    1/4*3/16 14.26  5.40  2.38  2.38 
    1/4*1/4 15.86  6.40  3.17  3.17 
    1/4*5/16 20.64  8.00  3.9  3.97 
    1/4*3/8 22.20  9.50  4.76  4.76 
    1/4*1/2 25.40  11.00  6.35  6.35 
    1/4*5/8 28.62  12.70  7.96  7.96 
    1/4*3/4 31.74  16.00  9.52  9.52 
    1/4*7/8 34.90  17.50   11.10  11.10 
    1/4*1 38.10  19.00   12.70  12.70 
    1/2*1/4 15.86  6.40  3.17  3.17 
    1/2*5/16 20.64  8.00  3.97  3.97 
    1/2*3/8 22.22  9.50  4.76  4.76 
    1/2*1/2 25.40  11.00  6.35  6.35 
    1/2*5/8 28.62  12.70  7.96  7.96 
    1/2*3/4 31.74  16.00  9.52  9.52 
    1/2*7/8 34.90  17.50  11.10  11.10 
    1/2*1 38.10  19.00  12.70  12.70 
    1/2*1-1/8 41.28  20.20  14.29  14.29 
    1/2*1-1/4 44.50  21.50  15.90  15.90 
    1/2*1-3/8 47.62  23.00  17.46  17.46 
    1/2*1-1/2 50.80  25.00  19.05  19.05 
    1/2*1-5/8 53.98  26.00  20.64  20.64 
    1/2*1-3/4 57.16  28.00  22.23  22.23 
    1/2*1-7/8 60.32  29.00  23.81  23.81 
    1/2*2 63.50  32.00  25.40  25.40 
    1/2*2-1/8 66.66  33.40  26.98  26.98 
    1/2*2-1/4 69.86  34.10  28.58  28.58 
    1/2*2-3/8 73.02  36.70  30.16  30.16 
    1/2*2-1/2 76.20  38.00  31.75  31.75 
    1/2*2-5/8 79.36  39.80  33.33  33.33 
    1/2*2-3/4 82.56  41.50  34.93  34.93 
    1/2*2-7/8 85.72  43.10  36.51  36.51 
    1/2*3" 88.90  44.00  38.10  38.10 
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    15Pcs Woodworking Router Bit Set

    15Pcs Woodworking Router Bit Set

    PRODUCT NAME SPECIFICATION
    Cove Bit S×R1/2
    Rounding Over Bit S×R3/8
    Mortising Bit S×1/2
    45°Chamfer Bit S×1/2
    Roman Ogee Bit S×R5/32
    Bearing Flush Trim Bit S×1/2
    Panel Pilot Bit S×1/4
    Cove Box Bit S×R1/8
    Straight Bit S×1/8
    90°Grooving Bit S×9mm
    Straight Bit S×1/2×1
    Straight Bit S×1/4
    Straight Bit S×3/4
    Slot Cutter Bit S×3/8
    Dovetail Bit S×1/2
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    12Pcs Woodworking Router Bit Set

    12Pcs Woodworking Router Bit Set

    PRODUCT NAME SPECIFICATION
    Straight Bit S×6mm
    Straight Bit S×12mm
    Straight Bit S×16mm
    90°Grooving Bit S×12.7mm
    Dovetail Bit S×12.7mm
    45°Chamfer Bit S×32mm
    Bearing Flush Trim Bit S×12.7mm
    Rounding Over Bit S×R6.3mm
    Rounding Over Bit S×R9.5mm
    Cove Box Bit S×R6.3mm
    Cove Bit S×R6.3mm
    Roman Ogee Bit S×R4mm
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    CNC Row Drill Bit

    CNC Row Drill Bit

    SPECIFICATION DIAMETER LENGTH
    Φ3-10*70/57R/L           3-10         70/57
    φ10.1-12*70/57R/L       10.1-12        70/57
    φ12.1-15*70/57R/L       12.1-15        70/57
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    Three Blade Data Crown Diamond Drill Bit

    Three Blade Data Crown Diamond Drill Bit

    SPECIFICATION DIAMETER LENGTH
    Φ5-10*70R/L 5-10 50/70
    Φ11*70R/L 11  50/70
    Φ12*70R/L 12  50/70
    Φ13-15*70R/L 13-15 50/70
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    Four Blade CNC Split Row Drill Bit

    Four Blade CNC Split Row Drill Bit

    SPECIFICATION DIAMETER LENGTH
    φ15-19*70/57R/L 15-19 70/57
    φ20-24*70/57R/L 20-24 70/57
    Φ25-29*70/57R/L 25-29 70/57
    φ30-35*70/57R/L 30-35 70/57
    φ36-40*70/57R/L 36-40 70/57
    Φ41-45*70/57R/L 41-45 70/57
    Φ46-50*70/57R/L 46-50 70/57
    φ51-55*70/57R/L 51-55 70/57
    φ56-60*70/57R/L 56-60 70/57
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    Z3 CNC Woodworking Row Drill Bit

    Z3 CNC Woodworking Row Drill Bit

    SPECIFICATION DIAMETER LENGTH
    Φ12-14*70/57R/L 12-14 70/57
    Φ15-19*70/57R/L 15-19 70/57
    Φ20-24*70/57R/L 20-24 70/57
    Φ25-29*70/57R/L 25-29 70/57
    φ30-35*70/57R/L 30-35 70/57
    φ36-40*70/57R/L 36-40 70/57
    Φ41-45*70/57R/L 41-45 70/57
    Φ46-50*70/57R/L 46-50 70/57
    φ51-55*70/57R/L 51-55 70/57
    φ56-60*70/57R/L 56-60 70/57
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    Woodworking Grooving Saw with Arbor

    Woodworking Grooving Saw with Arbor

    NUMBER
    OF TEETH
    CUTTING
    THICKNESS
    DIAMETER INNER
    DIAMETER
    MONEY/PIECE BOX QTY
    12  1.0  63  20  21.45 10  120 
    12  1.2  63  20  21.45 10  120 
    12  1.5  63  20  21.45 10  120 
    12  1.8  63  20  21.45 10  120 
    12  2.0  63  20  21.45 10  120 
    12  2.2  63  20  21.45 10  120 
    12  2.5  63  20  22.75 10  120 
    12  2.8  63  20  22.75 10  120 
    12  3.0  63  20  22.75 10  120 
    12  3.5  63  20  26 10  120 
    12  4.0  63  20  26 10  120 
    12  4.5  63  20  26 10  120 
    12  5.0  63  20  29.9 10  120 
    12  5.5  63  20  29.9 10  120 
    12  6.0  63  20  29.9 10  120 
    12  7.0  63  20  33.8 10  120 
    12  8.0  63  20  33.8 10  120 
    18  1.0  80  20  29.25 10  120 
    18  1.2  80  20  29.25 10  120 
    18  1.5  80  20  29.25 10  120 
    18  1.8  80  20  29.25 10  120 
    18  2.0  80  20  29.25 10  120 
    18  2.2  80  20  29.25 10  120 
    18  2.5  80  20  31.2 10  120 
    18  2.8  80  20  31.2 10  120 
    18  3.0  80  20  31.2 10  120 
    18  3.5  80  20  35.1 10  120 
    18  4.0  80  20  35.1 10  120 
    18  4.5  80  20  35.1 10  120 
    18  5.0  80  20  40.3 10  120 
    18  5.5  80  20  40.3 10  120 
    18  6.0  80  20  40.3 10  120 
    18  7.0  80  20  46.8 10  120 
    18  8.0  80  20  46.8 10  120 
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    Hex Shank Three-edge Woodworking Cutting Auger

    Hex Shank Three-edge Woodworking Cutting Auger

    LENGTH
    /SPECIFICATION
    155L 230L 300L 400L 460L 600L
    6 3.06 3.92 4.85 5.77 6.41 8.34
    8 3.41 4.44 5.51 6.66 7.44 9.68
    10 3.85 5.09 6.48 7.88 8.8 11.18
    12 4.5 5.97 7.58 9.28 10.39 13.19
    14 5.36 7.25 9.35 11.83 13.11 16.58
    16 5.89 7.87 10.1 12.77 14.16 17.9
    18 6.81 9.23 11.42 15.2 16.85 20.78
    20 7.72 10.49 13.08 17.22 19.15 23.72
    22 8.98 12.32 14.68 20.45 22.3 28.6
    24 10.09 13.93 16.94 23.03 25.23 32.34
    25 10.54 14.61 17.83 24.22 26.59 34.11
    26 11 15.29 18.72 25.4 27.95 35.88
    28 12.13 17.19 20.68 28.91 32.49 39.84
    30 13.51 18.8 24.99 31.71 35.71 45.3
    32 14.64 20.48 27.19 34.64 39.08 49.7
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    Alloy Four Edge Outer Round Chamfer

    Alloy Four Edge Outer Round Chamfer

    SPECIFICATION LENGTH MONEY BOX QTY
     3-20 58 18 / /
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    5Pcs Round Shank Slotted Alloy Drill Bit Set

    5Pcs Round Shank Slotted Alloy Drill Bit Set

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About CHENGGONG

Yueqing Chenggong Tools Co., Ltd. was established in 2001. The company produces glass drill bits, woodworking milling cutters, countersink drills, marble hole openers, branch drills, woodworking hole openers, aircraft-type woodworking hole openers, ceramic alloy drill bits, Aluminum plate forming knives, etc. We are one of the professional China Drill Bits suppliers and Carbide Drill Bits factory, we are mainly engaged in wholesale Multi-Material Drill Bits.

  • 2001

    Established
    in

  • 5000 +

    Million
    Pieces

  • 20 +

    R&D Team
    Members

  • 45 +

    Exporting
    Countries

Choosing the Right Drill Bits: Carbide vs Multi-Material Performance in Real Applications

In most job sites, drill bits are treated as consumables—but the difference between the right and wrong choice shows up quickly in practice: burned tips, wandering holes, cracked tiles, or simply wasted time switching tools.

When users search for drill bits, carbide drill bits, or multi-material drill bits, they are usually not looking for theory. They are trying to solve one simple problem: what should I use for this material, right now?

Drill Bits in Real Use: More Than Just a Rotating Tool

A drill bit is essentially a cutting interface between a power tool and the material surface. But in real applications, it behaves differently depending on friction, density, and heat buildup.

On job sites, the same issue appears repeatedly:

  • wood drilling is fast but tear-prone if the bit is wrong
  • metal drilling overheats and dulls standard bits quickly
  • masonry drilling causes vibration and edge chipping

That’s why drill bits are rarely “one category fits all”—they are selected based on the material behavior rather than the tool itself.

Common real search behavior reflects this:

  • drill bit that works on metal and wood
  • why my drill bit gets dull quickly
  • best drill bit for concrete and steel

Carbide Drill Bits: When Material Resistance Becomes the Main Challenge

Carbide drill bits are built around one priority: surviving high resistance materials without losing edge integrity.

Instead of focusing on versatility, they prioritize structural hardness. In practice, this means they stay effective when other bits begin to fail due to heat or abrasion.

Where carbide performs best in real work

  • drilling hardened steel components in fabrication shops
  • anchoring into concrete walls or structural masonry
  • repetitive industrial drilling where bit life matters more than cost per unit

In field use, carbide bits are often chosen not because they are “better,” but because downtime is expensive.

Typical intent behind searches:

  • tungsten carbide drill bit for steel plate drilling
  • why carbide drill bits last longer
  • heavy duty drill bits for construction concrete

It is also worth noting that carbide is not always the most efficient option for softer materials. On wood or plastic, it can feel overly aggressive and unnecessarily expensive.

Multi-Material Drill Bits: Designed for Job Site Flexibility

Multi-material drill bits exist because real work rarely involves a single material.

A technician may drill through wood framing, then hit a metal bracket, and finally anchor into masonry—all in the same task sequence. Switching bits slows down workflow, especially on ladders or tight spaces.

Multi-material drill bits are designed to reduce that interruption.

What they are optimized for in practice

  • mixed construction environments (wood + metal + brick)
  • electrical and HVAC installation work
  • general renovation where material layers are unpredictable

Instead of maximum hardness, they rely on geometry and coating design to maintain acceptable performance across different surfaces.

Search patterns often include:

  • one drill bit for wood metal and concrete
  • universal drill bit for renovation work
  • impact rated multi material drill bit for contractors

They are not the fastest option for each material individually—but they reduce tool switching, which is often more valuable on site.

Carbide vs Multi-Material: The Practical Difference on Site

Rather than thinking in terms of “better or worse,” professionals usually separate them by workflow logic.

Carbide Drill Bits

Best when:

  • material is predictable and hard
  • failure cost is high (steel, concrete anchoring)
  • long continuous drilling is required

Trade-off: limited flexibility, higher cost per bit

Multi-Material Drill Bits

Best when:

  • materials change frequently in one task
  • speed and convenience matter more than peak performance
  • drilling conditions are unpredictable

Trade-off: shorter lifespan in extreme materials compared to carbide

A Simple Way Professionals Choose

In real job planning, the decision is often not technical—it is operational:

  • If you know exactly what you are drilling → carbide
  • If you are moving between materials → multi-material
  • If it’s basic woodworking or DIY → standard HSS bits are usually enough

This is why contractors often carry all three types instead of relying on one “universal” solution.

Final Takeaway

Drill bits are not defined by labels alone. Their real value appears in how they behave under heat, pressure, and changing materials.

Carbide drill bits solve the problem of strength and durability under extreme resistance.

Multi-material drill bits solve the problem of efficiency across unpredictable job conditions.

In professional environments, the right choice is rarely about specification sheets—it’s about how much time, tool changes, and failure risk you can eliminate on site.