Guhring oHG - Ratio drills

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Type		Tool	Tool material	Surface	Shank	Series no.
Type		Tool	Tool material	Surface	Shank	3 × d	5 × d	7 × d
RT50	G				HE enforced		1206
	G				HE enforced		1207
	Application: Flexible steel shank with brazed carbide head. Drilling of abrasive material, like cast iron, aluminium-alloys with high high silicon content, plastics, graphite up to 5 × d hole depth.

RT80	F				HE	1441	*1442*	1443
	C				HE enforced	1157	1158	1159
	U				HE	1171	*1172*	1173
	Application: Flexible steel shank with hazed carbide tip. Especially for steeldrilling on unstable machines with internal coolant.

RT200	G				DZ	1705
RT200	Application: Dry machining of cast iron on absolutely stable machines with highest RPMs.

RT100 without IC	G				DZ	1798	*1799*
	G				DZ	1703	1704
	F				DZ	*1702*
					HA	*1659*
					HA	*2475*
	C				DZ	1700	1701
					HA		*1674*
					HA		*2481*
					HE		1675
	U				DZ	1242	*1243*
					DZ	2473	*2474*
					HA	1673
					HE	*1184*
					HA	*2472*

RT150	GG				HA	*768* (4 × d)		770 (10 × d)
	GN	Drill with negative helix			HA	12 × d 773
	Application: Especially for drilling deep holes with highest quality in short chipping materials.

RT100 with IC	F				HA	1660	*1662*
					HA		*2478*
					HE	1180	*1182*
					HE	2468	2470
	C				HE		1706
	U				HA	1661	1663
					HE	1181	*1183*
					HA	2469	*2471*
	Application: Highest machining rates in any materials on stable machines with internal coolant.