Burs Laboratory Diamond Discs 321 329 Double Sided / Rigid H.P. D321104 Single Sided (Top) Rigid 190 H.P. D356C104 220 340 160 220 Diaflex Double Sided 190 H.P. D345104 220 346 160 190 220 240 350 Diaflex Single Sided H.P. D346104 190 345 Flexible/Double Sided H.P. D340104 Horico Diaflex Double Sided (Bottom) 190 H.P. D350104 220 160 190 355C 356C Superdiaflex "C" Double Sided Superdiaflex "C" Single Sided (Bottom) 220 240 Medium Fine Grit gives longer durability H.P. D355C104 160 190 220 H.P. D356C104 190 120 808C Double Sided H.P. D808C104 160 139http://www.henryschein.com.au//Product/D321104190/Diamond-Disc-HORICO-#321-190-Edge-Cutting-HP-x-1 http://www.henryschein.com.au//Product/D356C104190/Diamond-Disc-HORICO-#356C-190-Superdiaflex-C-Fine-S~S-HP-x1 http://www.henryschein.com.au//Product/D340104160/Diamond-Disc-HORICO-#340-160-Flexible-Double-Sided-HP-x-1 http://www.henryschein.com.au//Product/D345104160/Diamond-Disc-HORICO-#345-160-Diaflex-Double-Sided-HP-x-1 http://www.henryschein.com.au//Product/D355C104160/Diamond-Disc-HORICO-#355C-160-Superdiaflex-C-Fine-HP-x-1 http://www.henryschein.com.au//Product/D356C104190/Diamond-Disc-HORICO-#356C-190-Superdiaflex-C-Fine-S~S-HP-x1