CGW 42842 4-1/2" X 7/8" Type 27 60-Grit PSG Ceramic Extreme II Flap Disc

The CGW 42842 is a 4-1/2 inch diameter, 7/8 inch arbor Type 27 flap disc designed for abrasive finishing on metal and other durable surfaces. It uses PSG Ceramic grains, which are engineered to maintain sharp cutting edges longer than conventional abrasive grains. This contributes to a cooler cutting action, improved material removal rates, and extended disc life in demanding grinding applications. The 60-grit sizing provides a balance between material removal and surface finish, making it suitable for shaping, deburring, and blending operations on rough or pulled finishes.

Constructed as a flap disc, it combines layered abrasive flaps with a ceramic grain system intended to deliver consistent performance across the disc’s life. Users can expect a robust performance profile that favors higher-speed metalwork while managing heat buildup typical of aggressive grinding. The Type 27 profile is oriented for conventional grinding angles and is well-suited for producing a flatter, smoother finish on curved or contoured parts when used with compatible tools and machines operating within manufacturer-recommended RPM ranges.

Compatibility and practical use considerations: the disc is configured for 4-1/2 inch grinding tools with a 7/8 inch arbor. With a rated RPM of 13,300, operators should ensure their tool matches or stays below this limit and that appropriate PPE is worn, including eye, face, and hand protection. The packaging lists individual discs in a 10-pack, which may influence stocking and job planning for shops that run frequent, high-volume finishing tasks. When selecting this disc, verify that Type 27 flexibility and PSG Ceramic grain alignment align with your material, desired finish, and machine speed for optimal results.

Features:

• PSG Ceramic grain stays sharper longer for cooler, faster cuts
• Type 27 flap disc design for versatile grinding tasks
• 4-1/2 in. diameter with 7/8 in. arbor
• Delivers long-lasting high performance and reliability
• PSG Ceramic grains cut faster than conventional aluminum oxide and zirconia
• Extreme II construction for durable grinding performance