1 For selecting the optimal tool and the recommended cutting parameters for your # 4112/4113/4114 application there is also an electronic version of GühringNavigator available at www. guehring.de

~0,01

  • for through holes supporting lands must remain in permanent contact. In addition, we recommend reducing the feed rate prior to exiting.
  • for drilling depths from 5xD we generally recommend centring or pilot drilling with holder, Guhring no. 4105, and pilot insert, Guhring no. 4111. Alternatively – depending on the material to be machined – Ratio 150° drills type RT 100 U or RT 100VA can be applied.
  • for drilling without centring we recommend reducing the feed rate at the start of the hole.
  • don‘t apply drilling tool without trial for interrupted cutting (grooves, transverse holes). For interrupted

cutting (max. 0.2 x D) it is recommended to reduce the feed rate whenever possible. 140°

  • in contrast to conventional indexable inserts, HT 800 tools are also suitable for the drilling of stacked sheets.
  • on a lathe (stationary tool) it must be ensured that the tool is accurately centred.
  • pre-condition for optimal machining results is a sufficient cooling lubricant supply with soluble or neat oil.
  • the tool is only of limited suitability for dry machining or MQL. For MQL application we recommend the use of the conical MQL shank end as well as Guhring MQL components. Please contact our Sales Management.
Coolant: Feed column no.
Drill-Ø mm1 2 3air neat oil 4 5 6 7 8 9
soluble oil f (mm/rev.)
0.500.004 0.006 0.0070.008 0.010 0.012 0.014 0.016 0.019
1.00 2.00 2.50 3.15 4.00 5.00 6300.006 0.008 0.012 0.020 0.025 0.032 0.025 0.032 0.040 0.032 0.040 0.050 0.040 0.050 0.063 0.040 0.050 0.063 000 0063 00800.014 0.016 0.018 0.020 0.023 0.025 0.040 0.050 0.063 0.080 0.100 0.125 0.050 0.063 0.080 0.100 0.125 0.160 0.063 0.080 0.100 0.125 0.160 0.160 0.080 0.100 0.125 0.160 0.200 0.200 0.080 0.100 0.125 0.160 0.200 0.250 0100 012 0160 0200 020 031
. 8.00 10.00 12.50.5 . . 0.063 0.080 0.100 0.080 0.100 0.125 0.080 0.100 0.125. .5 . . .5 .5 0.125 0.160 0.200 0.250 0.315 0.315 0.160 0.200 0.250 0.315 0.400 0.400 0.160 0.200 0.250 0.315 0.400 0.500
16.00 20.000.100 0.125 0.160 0.125 0.160 0.2000.200 0.250 0.315 0.400 0.500 0.630 0.250 0.315 0.400 0.500 0.630 0.630
25.00 31.500.160 0.200 0.250 0.160 0.200 0.2500.315 0.400 0.500 0.630 0.800 0.800 0.315 0.400 0.500 0.630 0.800 1.000
Material groupMaterial examples,new description(old description in brackets)Tensile strengthHard-Cool-
Figures in bold = material no. to DIN ENMPa(N/mm2)nessant
Commonstructural steels1.0035S185(St33),1.0486P275N(StE285),1.0345P235GH(H1),1.0425P265GH(H2) 1.0050E295 (St50-2),1.0070E360 (St70-2),1.8937P500NH (WStE500)≤500 >500-850
Free-cutting steels1.071811SMnPb30 (9SMnPb28),1.073611SMn37 (9SMn36)≤850
1.072746S20 (45S20),1.0728(60S20),1.075746SPb20 (45SPb20)850-1000
Unalloyedheat-treatable steels1.0402C22,1.1178C30E (Ck30) 1.0503C45,1.1191C45E (Ck45)≤ 700 700-850
1.0601 C60, 1.1221 C60E(Ck60)850-1000
Alloyed heat-treatable steels1.513150MnSi4,1.700338Cr2,1.703028Cr4850-≤1000
1.5710 36NiCr6, 1.703541Cr4, 1.722542CrMo41000-1200
Unalloyedcasehardened steels1.0301 (C10), 1.1121 C10E(Ck10)≤750
Alloyed case hardened steels1.704338Cr4 1.575215NiCr13 (15NiCr13), 1.713116MnCr5, 1.726420CrMo5850-≤1000 1000-1200
Nitriding steels1.850434CrAl6 1.8519 31CrMoV9, 1.8550 34CrAlNi7≥850-≤1000 >1000-1200
Tool steels1.1750C75W,1.2067102Cr6,1.230729CrMoV9 12080X210C1212083X42C1312419105WC612767X45NiCM4≤850 8501000
Highspeedsteels. r, . r, . r, . ro 13243S6-5-2-513343S6-5-213344S6-5-3>- ≥650-1000
Spring steels. , . , . 1.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV4(51CrV4)≤330 HB
Stainless steels, sulphured austenitic1.4005X12CrS13,1.4104X14CrMoS17,1.4105X6CrMoS17,1.4305X8CrNiS18-9 1.4301X5CrNi18-10 (V2A),1.4541X6CrNiTi18-10,1.4571X6CrNiMoTi 17-12-2 (V4A)≤850 ≤850
martensitic1.4057X20CrNi172 (X17CrNi16-2),1.4122X39CrMo17-1,1.4521X2CrMoTi18-2≤850
Hardenedsteels≤4 >40-48 HRC 8-60 HRC
Special alloysNimonic, Inconel, Monel, Hastelloy≤1200
Cast iron0.6010EN-GJL-100(GG10),0.6020EN-GJL-200(GG20) 0.6025EN-GJL-250(GG25),0.6035EN-GJL-350(GG35)≤240 HB
New castmaterials CGIEN-GJV250 (GGV25),EN-GJV350(GGV35)≤220 HB
EN-GJV400(GGV40),EN-GJV500(GGV50), SiMo 6
New castmaterials ADIEN-GJS-800-8(ADI800),EN-GJS-1000-5(ADI1000) EN-GJS-1200-2 (ADI1200), EN-GJS-1400-1 (ADI1400)800-1000 1200-1400
Spheroidal graphite iron and0.7050EN-GJS-500-7(GGG50),0.8035EN-GJMW-350-4(GTW35)≤240 HB
malleable Chilldcastiron ti0.7070 EN-GJS-700-2(GGG70), 0.8170 EN-GJMB-700-2(GTS70)350 HB
e ca Ti and Ti-aron lloys– 3.7024Ti99,5,3.7114TiAl5Sn2,5,3.7124TiCu2 37154TiAl6Z537165TiAl6V437184TiAl4M4S25TiAl8M1V1≤850 8501200
AluminiumandAl-alloys. r, . , . on,, - o 3.0255Al99,5, 3.2315AlMgSi1, 3.3515AlMg1>- ≤400
Al wroughtalloys3.0615AlMgSiPb3.1325AlCuMg13.3245AlMg3Si3.4365AlZnMgCu15≤450
Al cast alloys ≤ 10 % Si > 10%Si, , , , 3.2131G-AlSi5Cu1,3.2153G-AlSi7Cu3,3.2573G-AlSi9 32581G-AlSi1232583G-AlSi12Cu-G-AlSi12CuNiM≤600 ≤600
Magnesiumalloys. , . , g 3.5200 MgMn2, 3.5812.05 G-MgAl8Zn1, 3.5612.05 G-MgAl6Zn1≤450
Copper,low-alloyed2.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb≤400
Brass, short-chipping2.0380CuZn39Pb2,2.0401CuZn39Pb3,2.0410CuZn43Pb2≤600
long-chipping2.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,5≤600
Bronze, short-chipping2.1090CuSn7ZnPb,2.1170CuPb5Sn5,2.1176CuPb10Sn 2.0790CuNi18Zn19Pb≤600 >600-850
Bronze, long-chipping2.0916CuAl5,2.0960CuAl9Mn,2.1050CuSn10 2.0980 CuAl11Ni, 2.1247 CuBe2≤850 >850-1000