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DIN 1869 Series 1, 2, 3

Diameter to (incl.)	DIN 1869 Extra length twist drills
mm	mm
	Series 1		Series 2		Series 3
1.70	115*	75*
1.90	120*	80*
2.12	125	85	160*	110*	205*	135*
2.36	135	90	170*	115*	215*	145*
2.65	140	95	180*	120*	225*	150*
3.00	150	100	190	130	240*	160*
3.35	155	105	200	135	250*	170*
3.75	165	115	210	145	265	180
4.25	175	120	220	150	290	190
4.75	185	125	235	160	295	200
5.30	195	135	245	170	315	210
6.00	205	140	260	180	330	225
6.70	215	150	275	190	350	235
7.50	225	155	290	200	370	250
8.50	240	165	305	210	390	265
9.50	250	175	320	220	410	280
10.60	265	185	340	235	430	295
11.80	280*	195*	365*	250*	455*	310*
13.20	295*	205*	375*	260*	480*	330*

^* Guhring standard

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