Attachments



Construction Attachments

Flatliner - Asphalt Bump Grinder and IRI Improvement

Ideal For:

  • Maintenance Work/Bump Grinding
  • Ride Quality/IRI Improvement
  • Pavement Marking Removal
  • Coatings Removal

Skid steer attachment designed to smooth pavement roughness by shaving high spots and other irregularities in a cost effective manner. The Flatliner uses Flat Tooth Technology, a machined and precise holder system to insure a smooth and uniform surface, setting a new industry standard.

  • Precise Depth Control
  • Variable Cutting Widths: 2" to 49"
  • 100% Surface Coverage
  • Precisely levels bumps and other irregularities, acts as a profilograph and bump grinder in one
  • Utilizes Keystone Engineering's patented Flat Tooth Cutting Techonology
  • 100% surface coverage, unlike diamond blades and other traditional carbide conical bits and flail cutters
  • Minimal surface damage seen when comparing to traditional carbide bits and water blasting equipment
  • No water required
View Product Card
View Flatliner Product Card


Keysaw - Asphalt and Concrete Saw

Skid Steer Saw/Cold Planer Attachment Designed for Cutting Concrete

  • Asphalt and Concrete Sawing
  • Partial Depth Concrete Repair
  • Micro-Trenching
  • Longitudinal Joint Repair
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KeyCut - Skid Steer Milling Attachment

The KeyCut is a skid steer milling attachment for skid steers that is ideal for patching, utility cuts and trimming.

  • 24" and 40" standard cutting width
  • Custom drum width options available
  • 5" to 8" cutting depth
  • Standard, fine and micro drum spacing options
  • Tooled with Keystone's Easy Screw Quick-Change Block System
  • Electro-hydraulic control of depth, side shift and tilt
  • Independent depth skis for precise lap cuts
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Crack Router - Skid Steer Attachment

Crack Routing Attachment helps reduce material cost and increase production. Attachment utilizes Keystone Engineering's SS Quick Change Drum System.

  • Route up to 2.5" width
  • Accurate depth control up to 1.5" deep
  • Ejection system to keep debris out of routed area
  • Utilizes SS Quick Change Drum System
  • Vary cutting width by adding/removing bits
  • Interchangeable bits for different cutting applications
  • Diamond and carbide bit options
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V-Head - Joint Repair Attachment

Skid Steer Attachment Designed for Longitudinal Joint Repair

  • Remove and replace at deeper depths on the joint line or other targeted areas
  • Requires less material
  • Cuts a V-shape into the pavement that allows the new material to bond better to the existing
    pavement
  • The tapered cut alleviates the shearing effect that is seen with the flat surface cuts
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Flatliner - Slurry Seal and Micro Surfacing Surface Preparation

Ideal For:

  • Maintenance Work/Bump Grinding
  • Ride Quality/IRI Improvement
  • Pavement Marking Removal
  • Coatings Removal

Skid steer attachment designed to smooth pavement roughness by shaving high spots and other irregularities in a cost effective manner. The Flatliner uses Flat Tooth Technology, a machined and precise holder system to insure a smooth and uniform surface, setting a new industry standard.

  • Precise Depth Control
  • Variable Cutting Widths: 2" to 49"
  • 100% Surface Coverage
  • Precisely levels bumps and other irregularities, acts as a profilograph and bump grinder in one
  • Utilizes Keystone Engineering's patented Flat Tooth Cutting Techonology
  • 100% surface coverage, unlike diamond blades and other traditional carbide conical bits and flail cutters
  • Minimal surface damage seen when comparing to traditional carbide bits and water blasting equipment
  • No water required
View Product Card
View Flatliner Product Card


Flatliner Line Remover - Pavement Marking Removal Attachment
  • Optional self-contained vacuum system
  • 100% surface coverage to eliminate the need for multiple passes during pavement marking removal
  • Shaves the pavement’s surface instead of impacting the surface like traditional carbide conical bits that are used in asphalt milling machines
  • Minimized surface damage during pavement marking removal. Far less damage seen by the Flat tooth System than by water blasting equipment and traditional asphalt grinding products
  • Leaves a level and smooth surface unlike a milled surface or a diamond ground surface
View Product Card
View Flatliner Product Card


Keysaw - Trenching and Micro-Trenching Attachment
  • Asphalt and Concrete Sawing
  • Partial Depth Concrete Repair
  • Micro-Trenching
  • Longitudinal Joint Repair
View Product Card

Reclaiming and Stabilization Attachment

Traffic Loop Cutting Attachment

Manhole Trimmer


Material Processing Attachments

Lab Core Crusher
  • Creates material that is representative of field milling
  • The crusher’s drum design replicates an actual milling machine’s drum with similar wrap design, tooth spacing and drum RPM
  • Saves time by crushing cores in seconds and eliminates the need for a jaw crusher
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Underground Mining Attachments

Keysaw Mining - Underground Cutting and Grinding Attachment
  • Sawing
  • Grinding
  • Micro-Trenching
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Aftermarket Drum Manufacturing for all Milling Attachments - Keystone will design and build replacement drums for all OEM skid steer attachments to meet any specification or specific need.

  • Custom Width Attachment Drums
  • Standard, Fine Milling and Micro-Milling Attachment Drums
  • Surface Grinding Attachment Drums
  • Rumble Strip Grinding Attachment Drums
  • Line Removal Attachment Drums
  • Pavement Coatings Removal Attachment Drums
Replacement OEM Drums
  • Utilizes Keystone's proven bit attack and skew angles which allows the drum to cut more efficiently and drastically reduces bit consumption
  • Machined and balanced shell minimizes vibration on the attachment
  • Precise end ring placement with "The Edge" reduces wear on the blocks and leaves a clean edge cut
  • Can be tooled with any of Keystone's patented Quick-Change systems to eliminate the need for in-field welding
  • Complete cutter drive conversations available
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PCD - Polycrystalline Diamond Bits - Keystone has a large selection of PCD bits in stock. Please call Keystone direct to discuss the best bit for your milling application. 317-271-6192

D-540 PCD Bit - Polycrystalline Diamond Bits

Keystone Engineering's D-540 PCD tool can easily be adapted to any quick-change grinding system.

  • Improve productivity by extending tool life by 40x
  • Reduce fuel consumption by increasing cutting efficiency
  • Reduce overall maintenance cost of the machine by significantly reducing vibration
  • Carbide bolster extends the life of the diamond
  • Creates a smoother and more uniform surface pattern
  • Improve emplyee work environment by requiring fewer tool changes and minimizing machine vibration
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Carbide Bits - Keystone has a large selection of carbide bits in stock. Please call Keystone direct to discuss the best bit for your milling application. 317-271-6192

KEM-6 - Carbide Milling Bit

Bit Designed for Medium to High Horsepower Milling Machines

  • Patented non-rotating washer used to prevent block/holder face wear
  • Universal cutting bit that can be used on all OEM drum systems
  • Extended retainer for even block/holder wear
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KEM-7 - Carbide Milling Bit

Bit Designed for Medium to High Horsepower Milling Machines

  • Patented non-rotating washer used to prevent block/holder face wear
  • Universal cutting bit that can be used on all OEM drum systems
  • Extended retainer for even block/holder wear
View Product Card


Custom Equipment Design and Manufacturing - Keystone can design and manufacture equipment to meet your specific needs. Please call Keystone direct to discuss custom design and manufacturing. 317-271-6192