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Zoro Select Type 27 flap disc 4-1/2 inch 36 grit fiberglass backing

Zoro Select

Zoro Select Flap Disc Type 27 4-1/2" 36 Grit

SKU CH-ST54-3MD2Q

A 4-1/2 inch Type 27 flap disc with 36 grit zirconia alumina for extra coarse grinding at up to 13,300 RPM

  • Size4.7
  • Product typeSanding Abrasives
  • Zirconia alumina cuts fast on metal
  • Type 27 flat face suits surface grinding
  • 36 grit removes material aggressively
  • 13,300 RPM max speed handles heavy work
  • 5/8-11 threaded hole fits standard angle grinders

Zoro Select Flap Disc 4-1/2" 36 Grit

This flap disc is built for aggressive stock removal on metal surfaces. It suits welders, fabricators and maintenance crews who need a durable coated abrasive for grinding and blending tasks. The zirconia alumina grain cuts fast and resists heat buildup during extended use. The Type 27 profile works best on flat surfaces and edge work.

Thermals noise and power in normal use

The disc runs at a maximum operating speed of 13,300 RPM on compatible angle grinders. Fiberglass backing dissipates heat to reduce glazing and extend abrasive life during heavy grinding. Standard density flaps maintain consistent contact pressure across the workpiece. No external power draw or noise rating applies to this consumable accessory.

Bundled accessories and software impact

The disc mounts via a 5/8 in.-11 threaded hole for direct attachment to standard angle grinders. X-weight fiberglass backing provides rigidity and resists shredding under high load. Series XC1176 identifies the zirconia alumina formulation for reordering. No additional accessories, software or mounting hardware are included in the package.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 94% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameZORO SELECT
Product typeSanding Abrasives
Size & build
Size4.7

Questions about this item

How do I install the Zoro Select Type 27 flap disc on my angle grinder, and what step is often missed?

Thread the 5/8 in.-11 centre hole onto the grinder spindle and tighten the retaining nut firmly; the step often missed is confirming the disc sits flat against the flange before locking it down.

When will this 36 grit zirconia alumina disc need replacement?

Replace the disc once the flaps wear down to the fiberglass backing or the cutting action noticeably slows, which signals the abrasive layer is exhausted.

What is the first limit reached during sustained grinding at the 13,300 RPM maximum speed?

The fibre-glass backing plate will overheat and risk delamination before the zirconia alumina grains fully wear out.

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