GDV

hanks for SUMOGUN odular Gundrills withLS Weldon (W) Type Cylindrical (C) TypeWhistle Notch 15° (S) TypeWhistle Notch (WN) Type
hreaded ConnectionTHSZWS DCONMSg6
DesignationTHSZWS DCONMSShank(1)LS
GDV56-MF16X1-I-WN.75"MF16X1 19.05S69.8
GDV99-MF16X1-I-W.75"MF16X1 19.05W69.8
GDV10-MF16X1-M-C20MF16X1 20.00C50.0
GDV22-MF16X1-M-W20MF16X1 20.00W50.0
GDV80-MF16X1-I-WN1.00"MF16X1 25.40WN69.8
GDV11-MF20X1-M-C25MF20X1 25.00C56.0
GDV23-MF20X1-M-W25MF20X1 25.00W56.0
GDV57-MF20X1-M-WN25MF20X1 25.00S70.0
GDV100-MF20X1-I-W1.00"MF20X1 25.40W57.9
GDV58-MF20X1-I-WN1.00"MF20X1 25.40S69.8
GDV101-MF20X1-I-W1.25"MF20X1 31.75W57.9
GDV97-MF20X1-I-C1.25"MF20X1 31.75C57.9
GDV12-MF20X1-M-C32MF20X1 32.00C60.0
GDV24-MF20X1-M-W32MF20X1 32.00W60.0
GDV13-MF20X1-M-C40MF20X1 40.00C70.0
GDV25-MF20X1-M-W40MF20X1 40.00W70.0

(1) W-Weldon, C-Cylindrical, S-Whistle notch 15°, WN-Whistle notch

For tools, see pages: MNSNT (293)

Machining Conditions for MNSNT

SUMOGUN
TensileMaterialFeedvs. Drill Diameter
OStrengthHardnessGroupD=10-11.9D=12-13.9D=14-15.9D=16-19.9D=20-25.9
IS MaterialCondition[N/mm2]HBNo.V (m/min)mm/rev
< 0.25 %CAnnealed420125180-110-140
Non-alloy >= 0.25 %CAnnealed650190280-105-130
steel and < 055 %CQuenched and850250380-100-1200.150.180.200.250.25
cast steel, .tempered0.180.210.230.300.30
free cutting >= 0.55 %CAnnealed750220470-90-1100.210.240.270.350.35
steelQuenched and tempered1000300550-70-90
Annealed600200680-100-120
P Low alloy steel and cast930275770-90-1100.140.160.180.230.25
steel (less than 5% ofQuenched and017020022027030
alloying elements)tempered1000 1200300 3508 950-70-90 40-55-70. 0.21. 0.24. 0.26. 0.31. 0.35
Hih alloed steel castAnnealed6802001050-70-900.120.150.180.200.22
g y , steel, and tool steelQuenched and tempered11003251140-60-800.14 0.170.17 0.200.20 0.230.22 0.250.24 0.27
Stainless steel dttlFerritic/ martensitic.6802001240-55-700.12 0.130.14 0.150.16 0.180.16 0.190.18 0.21
an cas seeMartensitic820240130.150.170.200.210.24
Ferritic/pearlitic1801590-125-160
Cast iron nodular (GG)Pearlitic/ martensitic2601680-110-1400.200.250.300.350.35
K GtiGGGFerritic1601790-135-1800.230.280.330.400.42
rey cas ron ()Pearlitic2501880-110-1400.270.320.370.450.47
Ferritic1301990-125-160
Malleable cast ironPearlitic2302080-110-140
Aluminum-wrought alloysNot hardenable6021
Hdbl10022
arenae90-155-220025030035040045
NNot hardenable7523. 028. 033. 038. 045. 050
Aluminum-Hardenable9024. 0.32. 0.37. 0.42. 0.50. 0.57
cast alloys >12% SiHigh temperature1302580-120-160

Recommended cutting data

  • Mandatory use of emulsion or oil when drilling
  • For the 400mm long tools please reduce the cutting speed by 20%.