Description
Klingspor 317823 6"-.045-7/8" Kronenflex Edge Depressed Center Cutting Wheel
Achieve flush, burr-free cuts at deep depths with the Klingspor 317823 Kronenflex® Edge 6" x .045" (1/16") x 7/8" Depressed Center Cut-Off Wheel (A 646 R). Engineered in Germany for high-demand metal fabrication, field mechanical work, and pipefitting, this high-performance abrasive disc pairs deep cutting reach with the recessed hub geometry required for flush cutting without spindle nut gouging.
With its ultra-thin kerf (.045" / nominal 1/16"), the Kronenflex® Edge wheel reduces cutting resistance and material loss, accelerating cutting speed while keeping operating heat to an absolute minimum. This low thermal load virtually eliminates heat blueing, metallurgical distortion, and burr formation across sheet metal, angle iron, and thick-wall tubing. The pure chemical formulation is completely contaminant-free (Fe-S-Cl < 0.1%), ensuring zero ferritic transfer and preventing post-weld corrosion or rust spotting on stainless steel (INOX) fabrications.
Key Features:
- Type 27 Depressed Center Hub: Recesses the grinder lock nut beneath the abrasive face, allowing clean, flush-to-surface cuts without gouging the workpiece.
- Fast-Cutting Thin Kerf (.045" / 1/16"): Removes minimal material per pass to maximize cut speed, prolong battery life, and reduce operator push force.
- Steel & Stainless Steel (INOX) Dual Bonding: Specially bonded for high aggression and long service life on high-alloy, tool, carbon, and stainless steels.
- Contaminant-Free Purity (Fe-S-Cl < 0.1%): Certified free of iron, sulfur, and chlorine to safeguard stainless surfaces from post-cut pitting and rust stains.
- Low Thermal Load: Proprietary resin bond minimizes friction heat, reducing workpiece bluing and secondary deburring steps.
- Reinforced Fiberglass Safety Mesh: Multi-layer woven fiberglass backing provides heavy-duty burst resistance and lateral stability up to 10,200 RPM.
- Universal 7/8" Bore: Standard unthreaded arbor hole mounts smoothly onto standard 6" angle grinders.
Specifications
| Specification | Details |
| Brand | Klingspor Abrasives |
| Series | Kronenflex® Edge (Special Class / A 646 R) |
| Part / Item # | 317823 |
| Wheel Diameter | 6.0 in. (150 mm) |
| Thickness | .045 in. (Nominal 1/16" / 1.6 mm) |
| Arbor / Bore Size | 7/8 in. (22.23 mm) |
| Wheel Shape | Type 27 / Form 42 (Depressed Center) |
| Abrasive Grain | Premium Aluminum Oxide (A) |
| Bond / Hardness | Resin Bonded with High Reinforcement (Hard) |
| Max Operating Speed | 10,200 RPM (80 m/s) |
| Material Compatibility | Stainless Steel (INOX), Structural Steel, Carbon Steel, Alloy Steel |
| Purity Grade | Iron, Sulfur, and Chlorine-Free (Fe-S-Cl < 0.1%) |
| Origin | Engineered & Manufactured in Germany / Europe |
Frequently Asked Questions
What is the difference between this wheel (317823) and the 317822 wheel?
The 317823 is a Type 27 depressed center wheel featuring a recessed hub that drops the grinder spindle nut below the cutting plane, allowing flush-to-surface cuts. The 317822 is a Type 1 flat cut-off wheel intended for standard 90-degree drop cuts.
Why is the thickness listed as both .045" and 1/16"?
In the abrasive industry, 1.6 mm thin-kerf 6-inch cutting discs are commonly referred to interchangeably as .045" (referencing thin-kerf high-speed cutting discs) or 1/16" (the exact fractional equivalent). This provides the lateral stiffness needed on a 6" wheel while keeping the kerf narrow for low drag and fast cuts.
Is this wheel safe for use on stainless steel (INOX)?
Yes. The Kronenflex Edge formulation contains less than 0.1% iron, sulfur, and chlorine (Fe-S-Cl < 0.1%). It will not transfer ferritic particles to the metal, preventing chemical oxidation and rust spots on stainless steel fabrications.
Can I use this depressed center wheel for grinding or deburring?
No. Even though it has a depressed center hub, this is a thin cut-off wheel designed strictly for peripheral cutting. Applying side pressure or face grinding can damage the internal fiberglass webbing and cause wheel failure. Always use a dedicated 1/4" Type 27 grinding wheel for surface and weld grinding.
What size angle grinder is required for this disc?
This disc requires a 6" angle grinder with a 7/8" spindle flange rated to at least 10,200 RPM and equipped with an appropriate Type 27 cut-off wheel safety guard.
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Product Specifications
category_bullets: |
Depressed center design allows flush cutting clearance when working close to surfaces Professional 6" Kronenflex wheel engineered for fast cutting in metal and stainless steel |
selling_points: |
✔ Flush Cut Clearance: Depressed center hub allows flat, unobstructed cuts ✔ Ultra-Thin Profile: 0.045" thickness ensures rapid cuts with minimal burrs |
