SPESIFIKASI PRODUK
25mm HSS Countersink
3-Flute Precision Countersink for DIN 7991 Screws
Precision Countersinking (DIN 335 C)
This 25mm countersink is engineered to meet DIN 335 C standards, ensuring high-quality finishing for precision applications. Featuring three cutting edges, this tool is designed for clean, chatter-free countersinking. It is specifically optimized for creating the necessary clearance for M12 DIN 7991 countersunk screws, ensuring they sit perfectly flush with the workpiece surface.
Key Technical Highlights
- • Tip Angle: 90°.
- • Material: High-Speed Steel (HSS).
- • Design: 3-flute geometry for stability.
- • Compatibility: Perfectly suited for M12 DIN 7991 fasteners.
- • Versatility: Accommodates pilot holes from 3.8 mm.
| External Ø | 25 mm |
| Shank Ø (Ds) | 10 mm |
| Overall Length (L) | 67 mm |
| Feed Rate (Steel < 500 N/mm²) | 0.2 mm/rev |
Understanding Countersinking Angles
The tip angle of a countersink is critical for ensuring the screw head makes proper contact. A 90-degree angle, as provided by this tool, is the standard for most common countersunk screws, including DIN 7991. Ensuring the tool is correctly aligned with the pilot hole is essential to prevent "chatter marks" and achieve a clean, professional finish.
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