CRYSTOLON (SILICON CARBIDE)	ARKANSAS (WASHITA, SOFT,HARD)	DIAMOND		COATED ABRASIVES		DIAMOND
INDIA (ALUMINUM 0XIDE)	WHITE, BLACK, TRANSLUCENT	STONES	WATERSTONES	(WATERPROOF SANDPAPER)		COMPOUND
			JIS	CAMI	FEPA	MICRON
			(JAPAN)	(USA)	(EUROPE)	SIZE
					P100	141
Coarse Crystolon		Diamond			P120	127
				120		116
Coarse India					P150	97
				150		93
Medium Crystolon				180	P180	78
		Extra Coarse Diamond (220)	Norton 220		P220	65
				220		60
					P240	58
Medium India				240		53.5
					P280	52.5
						50
					P320	46
Fine Crystolon						45
		Coarse Diamond (325)		280		43
					P360	40.5
			360	320		36
Fine India	Washita				P400	35
				360		29
					P600	25.8
				400		23
Ex. Fine India	Soft Arkansas	Fine Diamond (600)	600		P800	22
						20
			800	600	P1200	16
			Norton 1000	700		14
				800	P1500	12.6
	Hard White Arkansas	Ex. Fine Diamond (1200)	1200			11
					P2000	10.3
			1500	1000		9.2
						9
				1500	P2500	8.4
			Norton 2000			7.5
	Hard Black Arkansas
	Hard Translucent Arkansas		Norton 4000	2000		6
						5
			Norton 8000			3
						1.2
						1
			15000			0.5