The CGW 42851 flap disc is a 4-1/2 inch diameter, 7/8 inch arbor Type 29 disc designed for aggressive material removal and high-performance finishing. It uses PSG Ceramic grain technology to maintain a sharp cutting edge, promoting cooler operation and faster material removal compared with conventional grain types. The 40-grit configuration supports rapid stock removal while still delivering a relatively smooth finish suitable for many workshop and fabrication tasks. This disc is intended for use on right-angle grinders and similar tools that accept 4-1/2" flap discs with an 7/8" arbor.
Constructed with a precision-shaped grain (PSG) ceramic formulation, the disc is designed to resist dulling and maintain cutting efficiency over extended use. The Type 29 profile provides angled, aggressive material engagement that can be advantageous for contouring, deburring, and blending on flat and edge surfaces. Its ceramic composition is marketed as offering longer life and cooler operation than traditional aluminum oxide and zirconia flap discs, which can translate into fewer disc changes and more productive cycles on demanding materials.
When selecting this disc, verify compatibility with your grinder’s arbor size and the workpiece material. The product is packaged as individual units, with a box quantity of 10, which may influence procurement planning for batch or repair needs. As with any aggressive finishing tool, operators should use appropriate PPE and follow manufacturer recommendations for wheel speed ratings, surface speeds, and dressing/conditioning practices to maximize disc life and achieve the desired finish.
Features:
- PSG Ceramic grains stay sharper longer for cooler, faster cuts
- Precision Shaped Grain (PSG) provides longer tool life and productivity
- Delivers long-lasting high performance and versatility
- PSG Ceramic grains cut faster than conventional aluminum oxide and zirconia
- Type 29 configuration suitable for angled grinding
- 4-1/2" diameter with 7/8" arbor size
- Grain:
- PSG Ceramic
- Dia:
- 4.5
- Arbor/Shank Size:
- 7/8
- Type:
- 29
- Grit:
- 40
- Package Size:
- Each
- Box Quantity:
- 10
