SF520
HIGH SPEED INTERNAL COOLANT DRILL - 20D
DRILL
NEW DOLPHIN
■ Tolerance ~ D6 D6 ~ 10
D
0 ~ -0.018
Shank Dia CARBIDE
h6
0 ~ -0.022
SIZES (mm)
EDP No SF520 041 SF520 042 SF520 043 SF520 044 SF520 045 SF520 046 SF520 047 SF520 048 SF520 049 SF520 050 SF520 051 SF520 052 SF520 053 SF520 054 SF520 055 SF520 056 SF520 057 SF520 058 SF520 059 SF520 060 SF520 061 SF520 062 SF520 063 SF520 064
D
L1
L2
D2
4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6 6.1 6.2 6.3 6.4
104 104 104 104 104 116 116 116 116 116 127 127 127 127 127 139 139 139 139 139 150 150 150 150
155 155 155 155 155 167 167 167 167 167 178 178 178 178 178 190 190 190 190 190 203 203 203 203
5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 7 7 7 7
TiAlN
30°
20D
DATA
HELIX
140°
P.710
SIZES (mm)
EDP No SF520 065 SF520 066 SF520 067 SF520 068 SF520 069 SF520 070 SF520 071 SF520 072 SF520 073 SF520 074 SF520 075 SF520 076 SF520 077 SF520 078 SF520 079 SF520 080 SF520 081 SF520 082 SF520 083 SF520 084 SF520 085 SF520 086 SF520 087 SF520 088
D
L1
L2
D2
6.5 6.6 6.7 6.8 6.9 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8
150 162 162 162 162 162 173 173 173 173 173 185 185 185 185 185 196 196 196 196 196 208 208 208
203 215 215 215 215 215 228 228 228 228 228 240 240 240 240 240 251 251 251 251 251 263 263 263
7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9
■ Applicable Working Material Carbon Steel ~ HB225
Alloy Steel HB225~325
Prehardened Steel HRc30~50
○
◎
◎
Hardened Steel SKD61 ~HRc55
SKD11 HRc55~
○
○
Copper
Graphite
Cast Iron ~FCD500
◎
Aluminum
Stainless Steel
○ ○ : GOOD ◎ : EXCELLENT
407
POWER MAX
SOLID SPIRAL