metric and inch
Customized
DIN, JIS, AISI
Jobber-length
Twist Drill Bit
Tungsten Carbide
Metal Drilling
3mm to 12mm
stc
Plastic Box
0.3mm to 20mm
Jiangsu
82075090
Product Description
Our solid carbide twist drill bits are made from super carbide materia.
hardness up to 91 HRA
speical size ,helix angle design available.
Tialn coating available.
hardness up to 91 HRA
speical size ,helix angle design available.
Tialn coating available.
| STC025-2, SOLID CARBIDE DRILL, Metric | ||||||
| METRIC SIZES, GOST 17275, MIDDLE SERIES | ||||||
| Size | Flute Length | Overall Length | Size | Flute Length | Overall Length | |
| 3 | 24 | 55 | 7.8 | 52 | 95 | |
| 3.2 | 24 | 55 | 8 | 52 | 95 | |
| 3.5 | 28 | 60 | 8.2 | 52 | 95 | |
| 3.8 | 30 | 63 | 8.5 | 52 | 95 | |
| 4 | 30 | 63 | 8.8 | 55 | 100 | |
| 4.2 | 30 | 63 | 9 | 55 | 100 | |
| 4.5 | 32 | 65 | 9.2 | 55 | 100 | |
| 4.8 | 36 | 70 | 9.5 | 60 | 105 | |
| 5 | 36 | 70 | 9.8 | 60 | 105 | |
| 5.2 | 36 | 70 | 10 | 60 | 105 | |
| 5.5 | 40 | 75 | 10.2 | 60 | 105 | |
| 5.8 | 40 | 75 | 10.5 | 60 | 105 | |
| 6 | 40 | 75 | 10.8 | 65 | 110 | |
| 6.2 | 42 | 80 | 11 | 65 | 110 | |
| 6.5 | 42 | 80 | 11.2 | 65 | 110 | |
| 6.8 | 45 | 85 | 11.5 | 65 | 110 | |
| 7 | 45 | 85 | 11.8 | 65 | 110 | |
| 7.2 | 45 | 85 | 12 | 70 | 120 | |
| 7.5 | 45 | 85 | ||||
