Klingspor SMT 645 Supra Abrasive Mop Disc – For Stainless Steel & Steel

Klingspor SMT 645 Supra Abrasive Mop Disc – For Stainless Steel & Steel

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Klingspor SMT 645 Supra Abrasive Mop Disc – For Stainless Steel & Steel


The Klingspor SMT 645 Supra abrasive mop disc is a versatile and durable flap disc designed for use on both stainless steel and steel. As part of the Supra product line, it combines high stock removal with a consistent finish, making it a reliable choice for fabrication shops, metalworkers, and industrial applications.


With zirconia alumina abrasive grain, the SMT 645 Supra ensures efficient grinding, weld removal, and blending, while its robust flap construction guarantees long service life. The disc’s well-balanced design reduces vibration, offering smooth operation and greater operator comfort during extended use.

✅ Key Features:

  • Supra performance line – professional-grade results on stainless steel & steel

  • Zirconia alumina abrasive grain – sharp, aggressive, and long-lasting cut

  • High material removal rate – ideal for heavy-duty grinding and weld work

  • Durable flap construction – consistent wear pattern and even finish

  • Reduced vibration – smoother handling and operator comfort

📏 Typical Specifications (may vary by disc):

  • Abrasive grain: Zirconia alumina

  • Quality line: Supra (professional)

  • Disc shape: Available in flat (Type 27) or convex (Type 29) versions

  • Diameters: Commonly 115 mm, 125 mm, 180 mm

  • Mounting: Standard bore for angle grinders

  • Applications: Heavy grinding, weld blending, surface finishing

📦 Common Applications:

  • Grinding and blending weld seams on stainless steel and steel

  • Surface preparation before painting or coating

  • General fabrication and repair workshop tasks

  • Heavy-duty metal finishing applications


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