GUHRING - Ружейные сверла - 2008 EN
для размещения заказа - guhring@guhring-tools.ru
Gun drills
Drill Feed column no. Gun drills must be guided
mm during spot-drilling.
from 11 12 13 14 15 16 17 18 Gun drills must never operate at full speed
0.002 0.004 0.020 0.032 0.045 without support in the machine shop.
1.50 0.003 0.005 f (mm/rev) 0.028 0.046 0.055
2.00 0.004 0.006 0.030 0.054 0.070 Cutting parameters can be reduced if
2.50 0.005 0.007 0.006 0.008 0.012 0.043 0.065 0.085 cooling parameters are insufficient.
4.00 0.007 0.009 0.007 0.010 0.016 0.061 0.085 0.120 Pressure increase systems are also an option.
6.00 0.010 0.014 0.008 0.012 0.018 0.068 0.100 0.150
8.00 0.012 0.016 0.010 0.016 0.025 0.075 0.120 0.160
10.00 0.020 0.025 0.013 0.024 0.035 0.085 0.130 0.180
14.00 0.025 0.030 0.022 0.032 0.045 0.095 0.145 0.200
18.00 0.026 0.035 0.028 0.040 0.055 0.110 0.180 0.250
20.00 0.027 0.036 0.035 0.050 0.065 0.130 0.185 0.300
24.00 0.028 0.038 0.040 0.055 0.070 0.140 0.195 0.350
28.00 0.030 0.040 0.045 0.060 0.080 0.150 0.200 0.400
30.00 0.035 0.045 0.047 0.065 0.085 0.180 0.250 0.450
35.00 0.040 0.050 0.049 0.068 0.090 0.200 0.300 0.500
40.00 0.050 0.070 0.100
0.055 0.075 0.120
0.060 0.080 0.150
*The feed rates always relate to tools with the recommended coating. In some cases
the successful application of un-coated tools cannot be guaranteed.
EB100
Material dependent coolants single-fluted gun drill
soluble oil
neat oil solid carbide
air 1.0 ... 8.0
The sequence of operations for deep hole drilling 35 >35< D D
• production of pilot hole (L = 1.5 x D, tolerance H8) recom-
• enter at low revolutions, approx. 200 rev./min, feed rate approx. 500 mm/min
• setting of coolant pressure and revolutions
• uninterrupted drilling to required drilling depth without wood pecking.
When applying gun drills with increased length-diameter-ratio , we recommend machining
with reduced cutting parameters (approx. 75% of the optimal cutting speed) up to a drilling
depth of approx. 25 mm.
• switching off coolant supply after reaching the required hole depth
• withdrawal in top gear with stationary spindle
Material group Material examples Tens. str. Hard- Cool- mended vc Feed vc Feed
Figures in bold = material no. to DIN EN 10 027 N/mm2 ness ant coating* m/min col. no.
Common structural steels m/min col. no.
1.0035 S185, 1.0486 StE P275N, 1.0345 P235GH, 1.0425 500
Technical Section Free-cutting steels 1.0050 E295, 1.0070 E360, 1.8937 P500NH >500-850 100 14 95 13
GuhringNavigator 1.0718 11SMnPb30, 1.0736 115Mn37 850 85 14 80 13
Unalloyed heat-treatable 1.0727 46 S20, 1.0728 60 S20, 1.0757 46SPb20 850-1000 90 14 85 13
steels 1.0402 C22, 1.1178 C30E 700 80 14 75 13
1.0503 C45, 1.1191 C45E 700-850 90 13 85 12
Alloyed heat-treatable steels 1.0601 C60, 1.1221 C60E 850-1000 80 13 75 12
1.5131 50MnSi4, 1.7003 38Cr2, 1.7030 28Cr4 850-1000 75 13 70 12
Unalloyed case hard. steels 1.5710 36NiCr6, 1.7035 41Cr4, 1.7225 42CrMo4 1000-1200 75 13 70 12
Alloyed case hardened steels 1.0301 C10, 1.1121 C10E 750 65 13 60 12
1.7043 38Cr4 850-1000 80 14 75 13
Nitriding steels 1.5752 14NiCr14, 1.7131 16MnCr5, 1.7264 20CrMo5 1000-1200 75 13 70 12
1.8504 34CrAl6 850-1000 65 13 60 12
Tool steels 1.8519 31CrMoV9, 1.8550 34CrAlNi7 1000-1200 75 13 70 12
1.1750 C75W, 1.2067 102Cr6, 1.2307 29CrMoV9 850 65 13 60 12
High speed steels 1.2080 X210Cr12, 1.2083 X42Cr13, 1.2419 105WCr6, 1.2767 850-1000 75 12 70 11
Spring steels 1.3243 S 6-5-2-5, 1.3343 S 6-5-2, 1.3344 61CrV4 650-1000 65 12 60 11
Stainless steels, sulphured 1.5026 55Si7, 1.7176 55Cr3, 1.8159 51CrV4 55 11 50 11
1.4005 X12CrS13, 1.4104 X14CrMoS17, 1.4105 X6CrMoS17 330 HB 65 12 60 12
austenitic 1.4301 X5CrNi18 10, 1.4541 X6CrNiTi18 10, 1.4571 850 55 13 50 12
martensitic 1.4057 X17CrNi16-1, 1.4122 X39CrMo17-1, 1.4521 850 45 13 40 12
Hardened steels – 850 35 13 35 12
30 12 25 11
Special alloys Nimonic, Inconel, Monel, Hastelloy 40-48 HRC 25 11 20 11
Cast iron EN-GJL-100 ... EN-GJL-200 >48-60 HRC 35 11 30 11
EN-GJL-250 ... EN-GJL-350 1200 85 15 80 14
Spheroidal graphite iron and EN-GJMW-350-4, EN-GJMB-550-4, EN-GJS-500-7 80 15 75 14
malleable cast iron EN-GJMB-700-2, EN-GJS-700-2 240 HB 80 14 75 13
Chilled cast iron – <300 HB 70 14 65 13
Ti and Ti alloys 3.7024 Ti99,5, 3.7114 TiAl5Sn2,5, 3.7124 TiCu2 240 HB 55 13 50 12
3.7154 TiAl6Zr5, 3.7164 TiAl6V4, 3.7184 TiAl4Mo4Sn2,5 <300 HB 35 11 30 11
Al and Al-alloys 3.0255 Al99,5, 3.2315 AlMgSi1, 3.3515 AlMg1 350 HB 30 11 25 11
Al-wrought alloys 3.0615 AlMgSiPb, 3.1325 AlCuMg1, 3.3245 AlMg3Si, 3.4365 850 150 16 140 14
Al-cast alloys 10 % Si 3.2131 G-AlSi5Cu1, 3.2153 G-AlSi7Cu3, 3.2573 G-AlSi9 850-1200 120 16 115 14
3.2581 G-AlSi12, 3.2583 G-AlSi12Cu, - G-AlSi12CuNiMg 400 150 17 140 16
> 10 % Si MgMn2, G-MgAl8Zn1, G-MgAl6Zn3 450 130 17 120 16
Magnesium-alloys 2.0070 SE-Cu, 2.1020 CuSn6, 2.1096 G-CuSn5ZnPb 600 110 16
Copper, low alloyed 2.0380 CuZn39Pb2, 2.0401 CuZn39Pb3, 2.0410 CuZn43Pb2 600 75 14 15
Brass, short-chipping 2.0250 CuZn20, 2.0280 CuZn33, 2.0332 CuZn37Pb0,5 450 120 17 70 13
2.1090 CuSn7ZnPb, 2.1170 CuPb5Sn5, 2.1176 CuPb10Sn 400 90 17 115 16
long-chipping 2.0790 CuNi18Zn19Pb 600 95 16 85 16
Bronze, short-chipping 2.0916 CuAl5, 2.0960 CuAl9Mn, 2.1050 CuSn10 600 75 16 90 15
2.0980 CuAl11Ni, 2.1247 CuBe2 600 70 16 70 15
Bronze, long-chipping Bakelit, Resopal, Pertinax, Moltopren >600-850 60 16 65 15
Plexiglass, Hostalen, Novodur, Makralon 850 75 14 55 15
Duroplastics Kevlar 850-1000 70 14 70 13
Thermoplastics GFK/CFK 60 13 65 13
Kevlar – 50 13 55 12
Glass/carbon fibre – 45 12
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bright steam tempered nitrided lands nitrided golden brown TiAlN
46 Gun drills guhring@guhring-tools.ru
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