Conical countersink blue ring HSS, DIN 335C, 90°
Conical countersink HSS, blue ring
CNTSNK-CONI-MA-BLUE-HSS-90DGR-D31MM
ZEBRA
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Burr- and chatter-free countersinking and deburring
Precision conical countersink with 3 cutting edges, precision-ground
Optimised spiral flute geometry
Excellent chip formation and removal
Sustainable product packaging made from 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified® in Bronze
Datasheets(X)
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Material to be processed | Steel |
Quality | ZEBRA-Premium |
Spot-facer diameter (d1) | 31 mm |
Shank diameter (d2) | 12 mm |
Tip diameter (d3) | 4.2 mm |
Length (l1) | 71 mm |
Number of cutting edges (Z) | 3 PCS |
Standards | DIN 335 |
Form | C |
Cutting material | HSS |
Countersink angle | 90 Degree |
Surface | Uncoated |
Shank style | Cylindrical |
Service life (points system) | 2 of 4 points |
Countersinking speed (point system) | 2 of 4 points |
Countersinking quality (point system) | 2 of 4 points |
Versatility (points system) | 1 of 4 points |
Countersinking behaviour (point system) | 2 of 4 points |
Material of sub-group | General structural steels |
Assignment of conical countersink to screw standards | ||
Conical countersink nominal diameter d1 | For countersunk head screws | For countersunk head screws |
DIN EN ISO 10642 (Formerly DIN 7991) | DIN EN ISO 2009, 2010, 7046, 7047 (Formerly DIN 963,964,965,966) | |
6,300 | M3 | M3 |
8,300 | M4 | - |
10,400 | M5 | M4, M5 |
12,400 | M6 | M6 |
16,500 | M8 | M8 |
20,500 | - | M10 |
25,000 | M10, M12 | M12 |
31,000 | M16 | - |
Legend |
vc = cutting speed [m/min] |
f = feed (mm/r) |
The suggested cutting values are reference values and must be adapted to the respective conditions. |
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