GUHRING - Каталог Сверла - вся линейка инструмента - 2013 EN
Twist Drills TiCN coated для размещения заказа - guhring@guhring-tools.ru Application Materials:
Coolant Through General Steels/Brass
EB 80 Universal Steels
Cast Iron
Single ute gun drill Aluminum & Alloys
Carbide head, steel body, Type G point, standard driver, RH cut
Cut Dia. = h5 tolerance range, Shank Dia. = h6
Reinforced Straight Shank35° l3 l2
30° l1
Speeds & Feeds 30° d2
information pg 490-491 20°
Series 5641 20°40xDSeries 5642 80xD
27° 12°
Dec. Diameter (d1) mm d2 l1 l2 EDP # Dec. Diameter (d1) mm d2 l1 l2 EDP #
inch d1Fract. Wire /mmmmmminch mm mm mm
25° 30°inch letter3.9709056410039700Fract. Wire /4.950
0.1563 15°5/324.00010.00230.00185.0090564100400000.1949inch letter5.10616.00
0.1575 5.000 10.00 230.00 185.00 9056410050000 0.2010 5.950 16.00
0.1969 18°13/645.15616.00280.00232.0090564100515600.23436.30016.00480.00432.009056420049500
0.2030 10°6.00016.00280.00232.0090564100600000.24806.95016.00480.00432.009056420051060
0.2362 5/16 6.350 16.00 320.00 272.00 9056410063500 0.2736 7.888 16.00 560.00 512.00 9056420059500
0.2500 7.000 16.00 340.00 292.00 9056410070000 0.3106 7.950 16.00 590.00 542.00 9056420063000
0.2756 3/8 7.938 16.00 370.00 322.00 9056410079380 0.3130 8.950 16.00 650.00 602.00 9056420069500
0.3125 8.000 16.00 430.00 372.00 9056410080000 0.3524 9.475 16.00 740.00 692.00 9056420078880
0.3150 7/16 9.000 16.00 430.00 372.00 9056410090000 0.3730 9.950 16.00 740.00 692.00 9056420079500
0.3543 1/2 9.525 16.00 450.00 402.00 9056410095250 0.3917 10.950 20.00 820.00 772.00 9056420089500
0.3750 10.000 16.00 480.00 432.00 9056410100000 0.4311 11.063 20.00 870.00 822.00 9056420094750
0.3937 11.000 20.00 510.00 460.00 9056410110000 0.4356 11.950 20.00 919.00 860.00 9056420099500
0.4331 11.113 20.00 550.00 500.00 9056410111130 0.4705 12.650 20.00 995.00 945.00 9056420109500
0.4375 12.000 20.00 550.00 500.00 9056410120000 0.4980 20.00 995.00 945.00 9056420110630
0.4724 12.700 20.00 600.00 550.00 9056410127000 1080.00 1030.00 9056420119500
0.5000 20.00 635.00 585.00 1140.00 1090.00 9056420126500
EB 80 standard point grinds
(special point grinds available)
2.00-4.00 mm 15° 4.01-20. 00 mm 15° 20.01-40.00 mm
30° 30° 15°
0,3 ... 0,7
21°35° 0,7 ... 1,2
20°
30°
25° 40°
15° 12° 10°
D
D D 4
4 4
D D D
Tech Tip:
Gun drills hold location to precise tolerances in extremely deep hole applications. Conventional gun drills consist of a steel body and driver
with a brazed carbide head for extended tool life and performance. When applying standard gun drills some basic steps should be observed:
s Drilling a pilot hole (tol. h8) is advisable. Enter the pilot hole at low RPM and feed rate (example: 200 RPM at 20 in/min)
s Gun drills for drilling depths over 40xD should enter pilot hole in a counterclockwise direction.
s Continuous drilling without pecking is required.
s Switch off coolant supply after reaching maximum drilling depth.
s Use a rapid withdrawal with a stationary spindle.
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guhring@guhring-tools.ru
www.guhring-tools.ru