GUHRING - Твердосплавные микросверла - 2009 EN
для размещения заказа - guhring@guhring-tools.ru
Made by Guhring
Tool material Solid carbide Solid carbide Pilot drilling
Surface finish Super A Super A
For the application of solid carbide micro-precision drills
Cooling ~4xD ~7xD ~8xD ~ 15 x D 15xD we recommend a pilot hole 1xD up to 2xD depth.
Drilling depth 6400 6401 6408 6412 For this pilot hole, the solid carbide micro-precision drill
4xD is optimally suitable. Its point angle and its diameter
Guhring no. tolerance are perfectly adapted.
# 6400 Tol. m7
# 6412 Tol. h7
~0,01
140°
135°
vc Feed column no. vc Feed column no. Centering
m/min m/min
64 62 58 58 In order to achieve full performance with solid carbide
90-120 64 62 90-120 58 58 micro-precision drills from 8xD drilling depth, we
90-110 64 62 90-110 59 59 recommend centering.
90-120 63 61 90-120 59 59 The ExclusiveLine solid carbide micro-precision drill up
80-100 64 62 80-100 58 58 to 4xD, Guhring no. 6400, can be applied for this purpose.
80-110 64 62 80-110 58 58 The centering diameter should be approximately 2/3xD.
80-110 63 61 80-110 58 58
80-100 63 61 80-100 58 58 2/3 xd1
80-100 62 60 80-100 58 58
60-80 63 61 60-80 57 57 Filter quality
90-110 63 61 90-110 58 58
70-100 62 60 70-100 58 58 When applying solid carbide micro-precision drills we
60-80 62 60 60-80 57 57 recommend constant monitoring of the lubricant‘s filter
60-80 62 60 60-80 57 57 quality due to the extremely small coolant duct diameters,
50-70 62 60 50-70 58 58 for example with our check instrument CC 3000.
40-60 62 60 40-60 58 58
40-60 57 57 40-60 57 57
40-60 57 57 40-60 57 57
40-60 57 57 40-60 57 57
56 56 60-80 56 56
30 57 57 57 57
15 60
30 56 56 60-80 56 56
68 66 60 60
10 68 66 25 60 60
<150 68 66 <150 60 60
<140 67 65 <140 60 60
<140 <140
<130 56 56 <130 56 56
56 56 56 56
15 68 68 35 68 68
15 68 68 35 68 68
60-80 59 59 60-80 59 59
60-80 59 59 60-80 59 59
120-150 120-150
120-150 120-150
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