Uhlobo lwe-disc yesihlabathi oluyinhlanganisela enobungani bemvelo 28:

Idiski yediski eyindayo ehlanganisa imvelo yenziwe ngamalambu akhethekile we-emery aboshelwe kwi-substrate enobungani bemvelo. I-disc eyi-SG evikela imvelo (eluhlaza okotshani) ibonakala ngokuphepha okuphezulu nokuguquguquka okuhle; indwangu ye-emery ne-substrate zombili zilungele imvelo. Okokusebenza kusetshenziselwa ukupholisha izigaxa zokushisela nezindawo zokupenda zemikhumbi, izimoto nezindiza.

Uhlobo lwe-disc yesihlabathi oluyinhlanganisela enobungani bemvelo 29:

Idiski yesihlabathi eyinhlanganisela enobungani bemvelo yenziwe ngama-zirconium corundum abrasives, ama-abrasives e-ceramic kanye nesisekelo esinzima sokusekela. Umkhiqizo unomphumela wokupholisa lapho ukumboza okukhethekile kunokusebenza okusika okukhulu. Ingasetshenziselwa ukugaya okujwayelekile kwensimbi futhi ifanele ukugaya okomile nokugaya okumanzi.