Audited Supplier
CNTN00018
Customized
DIN, JIS, AISI, API
Taper-length
Twist Drill Bit
High Speed Steel
Metal Drilling
Round
Blister Card
1~13mm
30~45 Days
YOUR BRAND
Carton
China
8207509000
Product Description
Drill bit for the precise drilling of steels and cast irons, thanks to its self-centring cut.
3.Cylindrical shank: the diameter of the shank is equal to the diameter of the tip. Enables versatile use on portable electrical tools and CNC machine tools.
4.30° type N flute: normal flute profile with a 30° helix angle. Suitable for general use. Provides good rigidity to the tool, as well as excellent drilling precision.
5.High-speed steel: HSS substrate. For general use in steels and cast irons up to 950 N/mm².
1.118°tip:118° tip angle for the sharpening of the drill bit. Suitable for general use in materials with long shavings. Enables the rapid attach of the material and simple centring.
2.Split-point grinding:reduction of the drill tip. Enables the simple self-centring of the drill bit on the smoothest of surfaces. Significantly reduces the requried axial load.3.Cylindrical shank: the diameter of the shank is equal to the diameter of the tip. Enables versatile use on portable electrical tools and CNC machine tools.
4.30° type N flute: normal flute profile with a 30° helix angle. Suitable for general use. Provides good rigidity to the tool, as well as excellent drilling precision.
5.High-speed steel: HSS substrate. For general use in steels and cast irons up to 950 N/mm².
| DIAMETER | D2/CM | L | l |
| 1 | 1 | 34 | 12 |
| 1.5 | 1.5 | 40 | 18 |
| 2 | 2 | 49 | 24 |
| 2.5 | 2.5 | 57 | 30 |
| 3 | 3 | 61 | 33 |
| 3.5 | 3.5 | 70 | 39 |
| 4 | 4 | 75 | 43 |
| 4.5 | 4.5 | 80 | 47 |
| 5 | 5 | 86 | 52 |
| 5.5 | 5.5 | 93 | 57 |
| 6 | 6 | 93 | 57 |
| 6.5 | 6.5 | 101 | 63 |
| 7 | 7 | 109 | 69 |
| 7.5 | 7.5 | 109 | 69 |
| 8 | 8 | 117 | 75 |
| 8.5 | 8.5 | 117 | 75 |
| 9 | 9 | 125 | 81 |
| 9.5 | 9.5 | 125 | 81 |
| 10 | 10 | 133 | 87 |
| 10.5 | 10.5 | 133 | 87 |
| 11 | 11 | 142 | 94 |
| 11.5 | 11.5 | 142 | 94 |
| 12 | 12 | 151 | 101 |
| 12.5 | 12.5 | 151 | 101 |
| 13 | 13 | 151 | 101 |
