(Professional Hardwood Floor Sanding Discs)
Heavy-duty zirconium edger discs engineered for aggressive cutting, consistent scratch patterns, and superior durability on hardwood floors.
Key Features
•Premium zirconium grain for fast, cool cutting
•Heavy, flexible backing that resists tearing and edge blowout
•Extremely consistent scratch pattern (critical for stain jobs)
•Longer life than standard aluminum oxide discs
•Designed for professional hardwood floor edgers
Same-day shipping • Local pickup in Saint Paul, MN
Product Overview
Starcke Blue Zirconium edger discs are built for professional floor sanding where control and consistency matter more than anything else. The zirconium grain cuts aggressively while maintaining an even scratch pattern, reducing the risk of stray scratches that can telegraph through stain or finish.
The heavy backing is a key advantage—it flexes without tearing, making these discs especially reliable on aggressive cuts and edge blending. Compared to typical aluminum oxide discs, Blue Zirconium lasts longer and performs more predictably under pressure.
Use these edger discs when you want:
•Fast, controlled material removal
•Consistent scratches that blend cleanly into the field
•Fewer disc changes during edge sanding
•Confidence before stain or sensitive finishes
When to Choose These Discs
Choose Starcke Blue Zirconium edger discs if:
•You are doing first-cut edging or heavy removal
•Scratch consistency is critical (especially before stain)
•You are working on harder woods or reclaimed flooring
•You want durability without losing control
When NOT to Use These Discs
These may not be the right choice if:
•You are doing final finish sanding or screening
•You need ultra-fine scratch refinement
•Dust loading requires open-coat or mesh abrasives
————————————————————
Grit Selection Guide
•24–36 grit: Heavy edge work, paint or finish removal
•40–60 grit: Intermediate leveling and edge blending
•80 grit: Pre-finish edge sanding
•100–120 grit: Final edging before screening or coating
⸻——————————————————
Technical Specifications
•Brand: Starcke
•Category: Zirconium Hardwood Floor Edger Discs
•Grain Type: Zirconium
•Backing: Heavy-duty flexible backing
•Diameter: 7" edger discs
•Center Hole: 7/8"
•Compatibility: Fits standard hardwood floor edgers including Clarke, American Sanders, Silver-Line, Super 7, B2, and similar machines
Application & Usage Notes
•Start one grit higher than usual compared to aluminum oxide
•Maintain steady pressure to avoid edge gouging
•Blend edges carefully into the field sanding pattern
•Vacuum thoroughly between grit changes
⸻—————————————————-
Dustin’s Notes
This is my favorite edger disc because of the scratch consistency and the backing. The flexibility keeps the disc from tearing, and the scratch pattern is predictable enough that I’ll even use these on stain jobs where mistakes are unforgiving.
⸻——————————————————
Related & Recommended Products
•Matching Belts: Starcke Blue Zirconium Drum & Belt Sander Belts
•Finish Prep Abrasives: Fine aluminum oxide or mesh discs
•Finishing Systems: Berger-Seidle waterborne finishes
⸻——————————————————
Pricing Policy
These edger discs are priced consistently for professional use. Discounts are reserved for approved contractor tiers or qualifying volume orders.
Shipping & Fulfillment
•Ships from Saint Paul, Minnesota
•Same-day shipping on in-stock items
•Available for local pickup