SPESIFIKASI PRODUK
3.9mm HSS Jobber Drill
Roll-Forged HSS Jobber Drill (DIN 338)
Resilient Design for Demanding Tasks
This 3.9mm jobber drill is manufactured using a roll-forging process, which preserves the integrity of the material structure. This results in a highly resilient tool capable of withstanding the stresses of arduous drilling tasks, making it a reliable choice for handheld drill operations. Built to DIN 338 dimensional standards, it features a standard helix angle and robust core thickness for consistent performance.
Key Technical Specifications
- • Material: HSS (High-Speed Steel).
- • Point Angle: 118°.
- • Tolerance: h8 nominal diameter.
- • Drilling Depth: Recommended L₂ max of 37.2 mm.
- • Coating: Uncoated.
| Nominal ⌀ (DC) | 3.9 mm |
| Overall Length (L) | 75 mm |
| Flute Length (Lc) | 43 mm |
| Feed (Steel < 750 N/mm²) | 0.03 mm/rev |
Drilling Guidance
To ensure optimal tool life and accuracy, the maximum drilling depth is calculated as:
*Always ensure the drill is securely held in the chuck and consider the material properties when selecting your feed rate.
Produk Kami
Produk industri berkualitas tinggi untuk pengelasan, otomatisasi robotik, dan solusi manufaktur.
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