► Carbitool | Rounding Over Bits

Smooth Edge Finishing for Every Cut Built for precision edge work, these Carbitool Rounding Over Bits deliver smooth, consistent profiles across timber, MDF & composite materials. Designed for professional tradesmen, joiners & cabinetmakers, each bit is engineered for balance, cutting accuracy & superior surface finish. With TCT or diamond-coated cutting...

Smooth Edge Finishing for Every Cut

Built for precision edge work, these Carbitool Rounding Over Bits deliver smooth, consistent profiles across timber, MDF & composite materials. Designed for professional tradesmen, joiners & cabinetmakers, each bit is engineered for balance, cutting accuracy & superior surface finish. With TCT or diamond-coated cutting tips, these bits maintain a keen edge over long production runs, minimizing downtime for sharpening & replacement. Carbitool’s reputation for Australian-made durability ensures these bits hold up under demanding workshop & site use — whether shaping furniture-grade timber, MDF joinery, or high-density laminates.

Every rounding bit in this range combines proven design with trade-level performance across all common router setups. When paired with Router Bits from Carbitool’s precision-engineered line-up, they deliver seamless results across softwood & hardwood applications. The bearing-guided design allows smooth, controlled passes for consistent edge profiling without tear-out. These bits fit effortlessly into Router & Saw Accessories kits or Router Tables & Jigs, giving tradesmen a reliable solution for shaping cabinet doors, benchtops, trim mouldings & custom panels. With Same-Day Dispatch available on most stocked profiles, workshops can stay productive without waiting for critical tooling replacements.

What’s in This Collection

► Rounding Over Bit 4mm Rad. TCT, 2 Flt 1/4 Shk W/Bear
‣ Compact radius bit for small edge profiles & precision joinery work.

► Rounding Over Bit 4.8mm Rad. TCT, 2 Flt 1/2 Shk W/Bear
‣ Ideal for soft edge detailing on cabinetry & internal panels.

► Rounding Over Bit 6.35mm Rad. TCT, 1/4 Shk W/Bear
‣ Smooths narrow corners & delivers fine finishing passes.

► Rounding Over Bit 7.9mm Rad. TCT, 2 Flt 1/4 Shk W/Bear
‣ Creates clean rounded mouldings across hardwood or MDF.

► Rounding Over Bit 9.5mm Rad. TCT, 2 Flt 1/4 Shk W/Bear
‣ General-purpose bit for consistent edge rounding in workshop setups.

► Rounding Over Bit 12mm Rad. Diamond Coated
‣ Diamond coating handles abrasive or laminated boards with ease.

► Rounding Over Bit 15.9mm Rad. TCT, 2 Flt 1/2 Shk W/Bear
‣ Deep-radius bit for strong decorative edges on hardwoods.

► Rounding Over Bit 19mm Rad. TCT, 2 Flt 1/2 Shk
‣ Precision-ground bit for large contour shaping & edge transitions.

► Rounding Over Bit 22.2mm Rad. TCT, 2 Flt 1/2 Shk W/Bear
‣ Delivers bold, smooth profiles suited for furniture-grade finishing.

 

Sidebar
Filter
  • 10
  • 15
  • 20
  • 25
  • 30
  • 50
  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Sort

Sort by:

  • Featured
  • Most relevant
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • Carbitool - Rounding Over Bit 7.9mm Rad TCT, 1/4 Shank W/bear | EY 510 B
    Carbitool - Rounding Over Bit 7.9mm Rad TCT, 1/4 Shank W/bear | EY 510 B
    Carbitool Rounding Over Bit 7.9mm Rad TCT, 1/4 Shank W/bear | EY 510 BThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth...
    $25.02
    $25.02
  • Carbitool - Rounding Over Bit 12mm Rad. Diamond Coated | DIACR 12 MB 1/2
    Carbitool - Rounding Over Bit 12mm Rad. Diamond Coated | DIACR 12 MB 1/2
    Carbitool Rounding Over Bit 12mm Rad. Diamond Coated | DIACR 12 MB 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth finish...
    $262.73
    $262.73
  • Carbitool - Rounding Over Bit 12mm Rad. TCT, 2Flt 1/2 Shank W/bear | T 512 MB 1/2
    Carbitool - Rounding Over Bit 12mm Rad. TCT, 2Flt 1/2 Shank W/bear | T 512 MB 1/2
    Carbitool Rounding Over Bit 12mm Rad. TCT, 2Flt 1/2 Shank W/bear | T 512 MB 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver...
    $63.75
    $63.75
  • Carbitool - Rounding Over Bit 15.9mm Rad Tct, 2 Flt 1/2 Shk W/Bear | T 520 B 1/2
    Carbitool - Rounding Over Bit 15.9mm Rad TCT, 2Flt 1/2 Shank W/bear | T 520 B 1/2
    Carbitool Rounding Over Bit 15.9mm Rad TCT, 2Flt 1/2 Shank W/bear | T 520 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver...
    $68.08
    $68.08
  • Carbitool - Rounding Over Bit 19mm Rad. Tct, 2 Flt 1/2 Shk | T 524 B 1/2
    Carbitool - Rounding Over Bit 19mm Rad. TCT, 2Flt 1/2 Shank | T 524 B 1/2
    Carbitool Rounding Over Bit 19mm Rad. TCT, 2Flt 1/2 Shank | T 524 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $86.70
    $0.00
    $86.70
  • Carbitool - Rounding Over Bit 2mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 502 MB
    Carbitool - Rounding Over Bit 2mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 502 MB
    Carbitool Rounding Over Bit 2mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 502 MBThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $55.21
    $55.21
  • Carbitool - Rounding Over Bit 22.2 Rad. TCT, 2Flt 1/2 Shank W/bear | T 528 B 1/2
    Carbitool - Rounding Over Bit 22.2 Rad. TCT, 2Flt 1/2 Shank W/bear | T 528 B 1/2
    Carbitool Rounding Over Bit 22.2 Rad. TCT, 2Flt 1/2 Shank W/bear | T 528 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver...
    $84.68
    $84.68
  • Carbitool - Rounding Over Bit 25.4mm Rad TCT, 2Flt 1/2 Shank | T 532 B 1/2
    Carbitool - Rounding Over Bit 25.4mm Rad TCT, 2Flt 1/2 Shank | T 532 B 1/2
    Carbitool Rounding Over Bit 25.4mm Rad TCT, 2Flt 1/2 Shank | T 532 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $96.20
    $96.20
  • Carbitool - Rounding Over Bit 3.2mm Rad. TCT, 2Flt 1/4 Shank | T 504 B
    Carbitool - Rounding Over Bit 3.2mm Rad. TCT, 2Flt 1/4 Shank | T 504 B
    Carbitool Rounding Over Bit 3.2mm Rad. TCT, 2Flt 1/4 Shank | T 504 BThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth...
    $55.39
    $55.39
  • Carbitool - Rounding Over Bit 3.5mm Rad. Diamond Coated | DIACR 3.5 MB 1/2
    Carbitool - Rounding Over Bit 3.5mm Rad. Diamond Coated | DIACR 3.5 MB 1/2
    Carbitool Rounding Over Bit 3.5mm Rad. Diamond Coated | DIACR 3.5 MB 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth finish...
    $197.52
    $197.52
  • Carbitool - Rounding Over Bit 31.8mm Rad TCT, 2Flt 1/2 Shank | T 540 B 1/2
    Carbitool - Rounding Over Bit 31.8mm Rad TCT, 2Flt 1/2 Shank | T 540 B 1/2
    Carbitool Rounding Over Bit 31.8mm Rad TCT, 2Flt 1/2 Shank | T 540 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $109.25
    $109.25
  • Carbitool - Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/2 Shank W/bear | T 506 B 1/2
    Carbitool - Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/2 Shank W/bear | T 506 B 1/2
    Carbitool Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/2 Shank W/bear | T 506 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver...
    $57.74
    $57.74
  • Carbitool - Rounding Over Bit 4.8mm Rad. Tct, 2 Flt 1/4 Shk W/Bear | T 506 B
    Carbitool - Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 506 B
    Carbitool Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 506 BThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $57.74
    $57.74
  • Carbitool - Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/4 Shank | T 506
    Carbitool - Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/4 Shank | T 506
    Carbitool Rounding Over Bit 4.8mm Rad. TCT, 2Flt 1/4 Shank | T 506The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth finish...
    $51.85
    $51.85
  • Carbitool - Rounding Over Bit 4mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 504 MB
    Carbitool - Rounding Over Bit 4mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 504 MB
    Carbitool Rounding Over Bit 4mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 504 MBThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $56.68
    $56.68
  • Carbitool - Rounding Over Bit 5mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 505 MB
    Carbitool - Rounding Over Bit 5mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 505 MB
    Carbitool Rounding Over Bit 5mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 505 MBThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $56.68
    $56.68
  • Carbitool - Rounding Over Bit 6mm Rad Diamond Coated | DIACR 6 MB 1/2
    Carbitool - Rounding Over Bit 6mm Rad Diamond Coated | DIACR 6 MB 1/2
    Carbitool Rounding Over Bit 6mm Rad Diamond Coated | DIACR 6 MB 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth finish...
    $216.68
    $216.68
  • Carbitool - Rounding Over Bit 6.0mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 506 MB
    Carbitool - Rounding Over Bit 6.0mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 506 MB
    Carbitool Rounding Over Bit 6.0mm Rad. TCT, 2Flt 1/4 Shank W/bear | T 506 MBThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $59.19
    $59.19
  • Carbitool - Rounding Over Bit 6.35mm Rad TCT, 1/2 Shank W/bear | EY 508 B 1/2
    Carbitool - Rounding Over Bit 6.35mm Rad TCT, 1/2 Shank W/bear | EY 508 B 1/2
    Carbitool Rounding Over Bit 6.35mm Rad TCT, 1/2 Shank W/bear | EY 508 B 1/2The Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a...
    $25.71
    $25.71
  • Carbitool - Rounding Over Bit 6.35mm Rad TCT, 1/4 Shank W/bear | EY 508 B
    Carbitool - Rounding Over Bit 6.35mm Rad TCT, 1/4 Shank W/bear | EY 508 B
    Carbitool Rounding Over Bit 6.35mm Rad TCT, 1/4 Shank W/bear | EY 508 BThe Carbitool router bit is precision-made in Australia from solid carbide or tungsten-carbide-tipped (TCT) construction for clean, accurate routing in timber, MDF, laminate and composites. Sharp, durable edges deliver a smooth...
    $23.92
    $23.92

Precision Finishing & Router Compatibility

Carbitool’s Rounding Over Bits are built for Advanced Carpentry & Joinery professionals who demand accuracy, durability & control from every pass. Their tungsten carbide-tipped & diamond-coated flutes maintain consistent sharpness across long-duty cycles, delivering precise radius control & low vibration. Whether shaping benchtop edges or smoothing cabinet fronts, tradesmen can rely on their balanced construction for repeatable results. When used alongside Wood Finishing Products, these bits produce smooth, sealed edges ready for lacquers or polyurethane coatings.

Engineered for compatibility with Specialty Woodworking Tools, these bits perform across fixed-base & plunge routers with 1/4" or 1/2" collets. Operators combining these with Dust Extraction & Safety Gear benefit from cleaner visibility, reduced rework & safer finishing environments. Backed by Trade Support Solutions, Carbitool ensures dependable aftersales guidance for technical fitment, router matching & trade purchasing options. From workshop fabrication to on-site trim fitting, these rounding bits remain a trusted standard for edge consistency, cut longevity & industrial precision.


► Professional-grade TCT & diamond coatings for long tool life
► Bearing-guided control for smooth, chatter-free performance
► Multiple radius options to match diverse woodworking profiles
► Australian-made precision trusted by trades for generations
► Same-Day Dispatch on most stocked lines
► Trade Support Solutions available for bulk or specialist orders

Frequently Asked Questions

Most Carbitool rounding bits perform best between 18,000–22,000 RPM. Larger radius bits should be run slower to maintain edge control & reduce burning.

Yes. The TCT & diamond-coated flutes handle laminated, veneered & composite panels effectively without chipping or overheating.

Bearings should be checked every few uses. Apply a light lubricant regularly & replace if any wobble or drag is detected during rotation.

Brands

Carbitool

Carbitool