• Tools for STI/PreMaster Grinder

    Shop STI / PrepMaster-compatible PCD, metal bond, hybrid, resin, and adapter options for floor prep and polishing work.


    Send your machine model, plate photo, coating condition, and job goal so we can help match the correct tool stage.

    Send machine model / plate photo for recommendation

  • Step 1 — PCD & Coating Removal for STI / PrepMaster

    Use PCD tools to remove epoxy, glue, mastic and other coatings before grinding.

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    PCD Coating Removal Tool for Prep/Master (STI) Floor Grinder (Left/Right)
    $26.99
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    Aggressive PCD Coating Removal Tools (Left/Right) for PrepMaster JR Grinder — Glue / Epoxy Removal
    $16.98
  • Metal Bond Grinding Tools for STI/PreMaster

    Use metal bond tools for heavy grinding, scratch opening and surface preparation.

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    Diamond Grinding Disc Tool for STI Prep/Master Grinder, 2 Round Segment
    $16.98 - $19.98
  • Step 3 — Hybrid Pads for STI/PreMaster

    Use hybrid pads after STI / PrepMaster metal grinding to reduce scratch carry-over before resin polishing.

    Confirm holder style, direction and previous grit before ordering.

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    4” (100mm) Ceramic Transitional Grinding Pad for Concrete (Dry/Wet)
    $22.99
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    3” (80mm) Ceramic Hybrid Transition Pad – High-Cut Resin-Bond for Hard Concrete (Velcro Back)
    $19.98
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    3” (80mm) Copper-Bond Transition Pad for Concrete — Faster Cut, Cooler Running (Dry Use)
    $12.99
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    3” (80mm) Hybrid Transition Pad for Concrete — Removes Metal Scratches Fast (Dry Use)
    $12.99
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    7” Ceramic Cup Wheel for Concrete Edge Grinding (Transitional Cut)
    $39.99
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    5” Ceramic Cup Wheel for Concrete Edge & Corner Grinding (Transitional Finish)
    $29.99
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    Ceramic Transitional Pads for HTC Grinder | Scratch Refinement
    $12.99
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    Copper Hybrid Transition Pad for Werkmaster Quick-Change | Scratch Refinement
    $11.99
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    Ceramic Transitional Pad for Werkmaster Grinder (Quick-Change) | Concrete Polishing Step
    $11.99
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    6 Post Hybrid Bond Polishing Pucks for CPS Grinders | Transitional Diamond Pads for Concrete
    $9.99
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    Resin Polishing Puck for CPS Grinder | Concrete Floor Polishing Pad
    $7.99
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    7" Ceramic Transitional Polishing Pad for Concrete Floor Edge | For Hand Grinders and Edging Machine
    $46.99
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    5 Inch Ceramic Transitional Polishing Pad for Concrete Floor Edges | For Hand Grinders
    $35.99
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    9“ Ceramic Transition Polishing Wheel for Concrete Floor | Scratch Refinement Between Metal & Resin
    $50.99
  • Step 4 — Resin Polishing Pads

    Use resin pads after STI / PrepMaster grinding and transition steps are complete.

    Select pad type and grit sequence by floor condition, polishing process and target gloss.

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    Resin Polishing Pad | Concrete Scratch Refinement & Dry Polishing
    $8.99 - $10.99
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    Diamond Sponge Polishing Pad | Concrete & Terrazzo Floor Polishing
    $79.98 - $109.99
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    Dry Polishing Pad for Concrete Floor Polishing
    $3.59 - $24.99
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    Fiber Polishing Pad for Concrete (Grit & Diameter Options)
    $8.59 - $99.99
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    17 Inch Diamond Polishing Pad for Concrete / Terrazzo / Marble Floor
    $99.99
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    Triangle Dry Polishing Pads (Delta Shape) for Concrete & Terrazzo
    $3.99
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    Fiber Polishing Pad for Concrete (Hex Pattern)
    $13.79 - $99.99
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    Dry Polishing Pad for Granite, Marble, Quartzite & Natural Stone
    $3.59 - $24.99
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    12mm Thick Resin Diamond Polishing Pads for Concrete (Size & Grit Options)
    $8.99 - $11.99
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    Cassani Type Resin Diamond Polishing Pad with Hook-and-Loop Backing for Stone, Concrete & Terrazzo
    $14.99
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    5” (125mm) Diamond Polishing Pad for Concrete – Resin Bond, Wet/Dry
    $4.99
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    Diamond Resin Polishing Pad for Werkmaster Grinder | Quick-Change (50–3000 Grit)
    $9.99
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    Resin Bond Polishing Pad for HTC Grinder | Concrete Stone Floor Polishing
    $8.99
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    17” (430mm) Resin-Bond Diamond Wet Polishing Pad for Concrete / Terrazzo / Stone (Grit Options)
    $95.99
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    16” (400mm) Wet/Dry Resin Diamond Polishing Pad Disc (14mm)
    $69.98
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    Sunburst Copper-Resin Hybrid Polishing Pad for Concrete & Granite (4”/5”)
    $9.99 - $13.99
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    Resin Polishing Pads for HTC Grinder | Quick-Change Concrete Polishing
    $9.99
  • Not Sure What Fits Your STI/PreMaster Grinder?

    Send us your STI / PrepMaster grinder model, current floor condition and job goal. We will help you match the correct PCD, metal, hybrid and resin tools before ordering.