TABLE 1

			APPLICATION
			FINE FINISHING		FINISHING			MEDIUM MACHINING			ROUGHING		HEAVY ROUGHING
Preferred Geometry			- 22		- 22, - 26 and LM			- 26, - 49, LM and - 5			-5 to -8		- 8
Depth of Cut (mm)			0.05 to 1		1 to 3			2 to 4			4 to 6		> 6
Feed (mm/rev)			< 0.1		0.1 to 0.2			0.2 to 0.4			0.4 to 0.63		> 0.63
			Preferred Grades		PreferredGrades			Preffered Grades			Preferred Grades		Preferred Grades
Material	Condition	Hardness	TTI 15	TN 1000	TTI 15	TN 1000	TN 2000	TN 1000	TN 2000	TN 4000	TN 2000	TN 4000	TN 4000
		BHN
Steel/Cast Steel Unalloyed C-0.15%	Annealed	125	400 500	370 460	340 420	340 420	300 380	260 300	240 320	200 280	210 300	180 250	160 190
Steel/Cast Steel Unalloyed C-0.45%	Annealed	190	380 450	370 450	320 380	330 400	300 360	240 330	220 300	180 240	190 260	140 200	120 140
Steel/Cast Steel Unalloyed C- 0.45%	Quenched and Tempered	250	360 440	330 390	290 360	290 340	260 310	210 260	190 260	140 200	160 230	120 170	100 120
Steel/Cast Steel Unalloyed C- 0.75%	Annealed	220	320 380	300 340	250 280	260 300	220 260	190 240	170 210	120 160	140 190	110 140	90 100
Steel/Cast Steel Unalloyed C - 0.75%	Quenched and Tempered	300	270 300	240 260	200 230	200 220	180 200	140 180	120 160	100 120	100 140	80 100	70 80
Steel/Cast Steel Low Alloyed	Annealed	180	330 400	310 360	260 320	280 320	250 290	200 260	180 230	140 180	150 200	120 160	100 120
Steel/Cast Steel Low Alloyed	Quenched and Tempered	275	320 380	300 340	250 290	260 300	220 260	190 240	170 210	120 160	140 190	110 140	90 100
Steel/Cast Steel Low Alloyed	Quenched and Tempered	300	300 340	270 300	220 260	220 250	210 230	160 200	140 180	110 140	120 160	100 120	90 100
Steel/Cast Steel Low Alloyed	Quenched and Tempered	350	270 300	240 260	200 230	200 220	180 200	140 180	120 160	100 120	100 140	80 100	70 80
Steel/Cast Steel High Alloyed (Tool Steel)	Annealed	200	330 400	310 360	260 320	280 320	250 290	200 260	180 230	140 180	150 200	120 160	100 120
Steel/Cast Steel High Alloyed (Tool Steel)	Quenched and Tempered	325	270 300	240 260	200 230	200 220	180 200	140 180	120 160	100 120	100 140	80 100	70 80