Josco Zirconia Flap Disc 120 Grit

This Josco zirconia flap disc is a 127mm disc with a 22mm bore, dressed in 120 grit (fine) zirconia flaps for light surface finishing and cleaning. It is the fine step in the Josco grit range, used after the coarse and medium discs to blend a surface to a smooth, even finish. The disc mounts straight onto an angle grinder without a backing pad and suits steel, stainless steel and aluminium.

Key Features

• Zirconia abrasive for grinding, finishing and cleaning on metal
• 120 grit (fine) for light surface finishing and cleaning
• Fits directly onto an angle grinder, no backing pad required
• Suits steel, stainless steel and aluminium
• 127mm diameter with a 22mm bore
• Ideal as the final step before paint or coating

Specifications

• Part number: JDZ127120
• Grit: 120 (fine)
• Size: 127mm
• Bore: 22mm
• Abrasive: zirconia
• Application: light surface finishing and cleaning

Applications

• Light surface finishing on steel and stainless steel
• Cleaning up welds and removing light surface marks
• Blending a surface before painting or coating
• Finishing aluminium and other non-ferrous metals
• General angle grinder work on the job site

What You Need To Complete The Job

Use this 120 grit disc as the final step after the 40 grit and 80 grit discs for a smooth, finished surface. Grinding produces sparks and fine dust, so wear clear safety glasses and gloves. Browse the Power Tools range for grinders and accessories.

Frequently Asked Questions

When should I use a 120 grit flap disc?

Use 120 grit when you want a fine, smooth finish rather than fast material removal. It is the finishing step in the flap disc range, ideal for cleaning up after a coarse or medium disc, blending a surface before paint, and removing light marks without digging into the metal.

Can a fine grit disc remove welds?

It can clean up light weld seams and remove the scale left after welding, but it is not the right disc for heavy weld removal. For large weld beads and fast stock removal, start with a 40 grit coarse disc, then use the 120 grit to blend the area to a smooth finish.

Will this disc work on aluminium?

Yes. The zirconia flap disc is suited to steel, stainless steel and aluminium. Use light pressure and let the grinder speed do the work, and keep a separate disc for aluminium where possible to avoid cross contamination with steel residue.

What is the difference between a flap disc and a grinding disc?

A grinding disc removes material with a rigid bonded wheel, while a flap disc uses overlapping abrasive flaps that wear down to expose fresh grit as you work. Flap discs give a smoother finish and are less likely to dig into the metal, which is why they are the usual choice for blending, weld cleanup and finishing on an angle grinder.