Sheet metal conical drill bit HSS With two cutting edges
Sheet metal conical drill bit HSS CBN
SHTMETCONIDRL-HSS-SZ2-(D5-20MM)
ZEBRA
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- CBN (cubical boron nitride), deep ground
- Stepless drilling and widening of holes within the diameter range of 3–61 mm
- No countersinking or pre-drilling required
- Burr-free drilling without causing the sheet metal to deform. Excellent heat conductivity for longer service life thanks to axial and radial CBN relief grinding
- Mounting shank with three-phase grinding
- With laser scale for easy identification of the required drilling hole diameter
- Speed table included
- Increase service life and cutting performance using drilling and cutting oil or cutting paste
Datasheets(X)
- For universal use
- Also suitable for drilling very thin sheets
Size | 2 |
Min./max. drill diameter | 5-20 mm |
Length | 71 mm |
Shank diameter | 8 mm |
Type description | HSS |
Cutting material | HSS |
Shank style | 3-face shank |
| Standard speed values for sheet metal conical drill bit | |||||
| Material | Non-ferrous metals | Stainless steel sheet Nirosta, A2 | Plastics, duroplastics, thermoplastics | Soft sheet steel, such as St 14 - St 37 | |
| Plate thickness | 0.1–6 mm | 0.1–2 mm | up to 10 mm | 0.1–4 mm | |
| Size | dia. mm | n = rpm | n = rpm | n = rpm | n = rpm |
| 1 | 3–14.0 | 2000–1500 | 600–400 | 3000–2000 | 800–500 |
| 2 | 4–20.0 | 1500–800 | 400–200 | 2000–1500 | 600–300 |
| 3 | 16–30.5 | 1000–500 | 200–100 | 1500–1000 | 400–200 |
| 4 | 24–40.0 | 500–300 | 100–80 | 1000–500 | 300–150 |
| 5 | 36–50.0 | 300–200 | 50–80 | 500–200 | 200–100 |
| 6 | 40–61.0 | 200–100 | 50–25 | 300–150 | 100–50 |
| 8 | 4–31.0 | 1000–500 | 200–100 | 1500–1000 | 400–200 |
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