SF508
HIGH SPEED INTERNAL COOLANT DRILL - 8D
DRILL
NEW DOLPHIN
■ Tolerance
D3.1 ~ D6 POWER MAX
Shank Dia
D
D3 D6.1 ~ D10 D10.1 ~ D13
SOLID SPIRAL
0 ~ -0.014 0 ~ -0.018
h6
0 ~ -0.022
CARBIDE
0 ~ -0.027
SIZES (mm) D L1 mm fraction inch
EDP No SF508 030 SF508 031 SF508 03175 SF508 032 SF508 033 SF508 034 SF508 035 SF508 03572 SF508 036 SF508 037 SF508 038 SF508 039 SF508 0397 SF508 040 SF508 04039 SF508 041 SF508 042 SF508 043 SF508 04366 SF508 044 SF508 045 SF508 046 SF508 047 SF508 04763
3 3.1 3.175 3.2 3.3 3.4 3.5 3.572 3.6 3.7 3.8 3.9 3.97 4 4.039 4.1 4.2 4.3 4.366 4.4 4.5 4.6 4.7 4.763
1/8 9/64 3/16
.1181 .1120 .1250 .1260 .1299 .1339 .1378 .1406 .1417 .1457 .1496 .1535 .1563 .1575 .1590 .1614 .1654 .1693 .1719 .1732 .1772 .1811 .1850 .1875
43 43 43 43 43 43 43 43 43 43 49 49 49 49 49 49 49 49 49 49 49 49 49 56
L2
D2
80 80 80 80 80 80 80 80 80 80 87 87 87 87 87 87 87 87 87 87 87 87 87 94
3 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5
8D
TiAlN
EDP No SF508 048 SF508 049 SF508 050 SF508 051 SF508 05159 SF508 052 SF508 053 SF508 054 SF508 0541 SF508 055 SF508 05558 SF508 056 SF508 057 SF508 058 SF508 059 SF508 05953 SF508 060 SF508 061 SF508 062 SF508 063 SF508 0635 SF508 064 SF508 065 SF508 06528
30° HELIX
DATA
140°
SIZES (mm) D L1 mm fraction inch
4.8 4.9 5 5.1 5.159 5.2 5.3 5.4 5.41 5.5 5.558 5.6 5.7 5.8 5.9 5.953 6 6.1 6.2 6.3 6.35 6.4 6.5 6.528
13/64 7/32 15/64 1/4 -
.1890 .1929 .1969 .2008 .2031 .2047 .2087 .2126 .2130 .2165 .2188 .2205 .2244 .2283 .2323 .2344 .2362 .2402 .2441 .2480 .2500 .2520 .2559 .2570
56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 56 94 67 67 67 67 67 67 67
P.709
L2
D2
94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 94 6 105 105 105 105 105 105 105
5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7
■ 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
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