TiN 90° countersink DIN 335C
Conical countersink HSS, titanium-nitride
CNTSNK-CONI-MA-HSS-90DGR-TIN-D12,4MM
ZEBRA
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Up to 30 % faster cutting speeds and 2-4x longer service life compared to blue ring
TiN coating
Burr- and chatter-free countersinking and deburring
Precision tapered countersink with three cutting edges, precision-ground
Optimised flute geometry
Excellent chip formation and removal
Product packaging made of 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified® Bronze
Datasheets(X)
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Material to be processed | Steel |
Quality | ZEBRA-Premium |
Spot-facer diameter (d1) | 12.4 mm |
Shank diameter (d2) | 8 mm |
Tip diameter (d3) | 2.8 mm |
Length (l1) | 56 mm |
Number of cutting edges (Z) | 3 PCS |
Standards | DIN 335 |
Form | C |
Cutting material | HSS |
Countersink angle | 90 Degree |
Surface | TiN |
Shank style | Cylindrical |
Service life (points system) | 3 of 4 points |
Countersinking speed (point system) | 3 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) | |
6.3 mm | M3 | M3 |
8.3 mm | M4 | - |
10.4 mm | M5 | M4, M5 |
12.4 mm | M6 | M6 |
16.5 mm | M8 | M8 |
20.5 mm | - | M10 |
25.0 mm | M10, M12 | M12 |
31.0 mm | M16 | - |
Cutting values | ||||||
For dia. 6.3-12.4 | ||||||
Material designation | Tensile strength | vc | f | |||
Dia. 6.3 | Dia. 8.3 | Dia. 10.4 | Dia. 12.4 | |||
Steels | ||||||
General structural steels | ≤ 500 N/mm² | 35 | 0,120 | 0,130 | 0,135 | 0,150 |
≤ 1,000 N/mm² | 33 | 0,070 | 0,080 | 0,090 | 0,100 | |
Unalloyed quenched and tempered steels | ≤ 700 N/mm² | 35 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 850 N/mm² | 33 | 0,120 | 0,130 | 0,135 | 0,150 | |
≤ 1,000 N/mm² | 22 | 0,070 | 0,080 | 0,090 | 0,100 | |
Alloyed quenched and tempered steels | ≤ 1,000 N/mm² | 17 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 1,400 N/mm² | 13 | 0,070 | 0,080 | 0,090 | 0,100 | |
Nitriding steels | ≤ 1,000 N/mm² | 17 | 0,070 | 0,080 | 0,090 | 0,100 |
≤ 1,400 N/mm² | 13 | 0,040 | 0,050 | 0,060 | 0,060 | |
Tool steels | ≤ 850 N/mm² | 19 | 0,070 | 0,080 | 0,090 | 0,100 |
≤ 1,400 N/mm² | 17 | 0,040 | 0,050 | 0,060 | 0,060 | |
High-speed steels | ≤ 1,400 N/mm² | 17 | 0,040 | 0,050 | 0,060 | 0,060 |
Cast metals | ||||||
Cast iron | ≤ 240 HB | 19 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 350 HB | 17 | 0,120 | 0,130 | 0,140 | 0,150 | |
Spheroidal graphite and malleable iron | ≤ 240 HB | 17 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 350 HB | 17 | 0,120 | 0,130 | 0,140 | 0,150 | |
Chilled cast iron | ≤ 350 HB | 12 | 0,040 | 0,050 | 0,060 | 0,060 |
For dia. 16.5-31 | ||||||
Material designation | Tensile strength | vc | f | |||
Dia. 16.5 | Dia. 20.5 | Dia. 25 | Dia. 31 | |||
Steels | ||||||
General structural steels | ≤ 500 N/mm² | 35 | 0,170 | 0,180 | 0,210 | 0,240 |
≤ 1,000 N/mm² | 33 | 0,110 | 0,130 | 0,150 | 0,170 | |
Unalloyed quenched and tempered steels | ≤ 700 N/mm² | 35 | 0,170 | 0,180 | 0,210 | 0,240 |
≤ 850 N/mm² | 33 | 0,170 | 0,180 | 0,210 | 0,240 | |
≤ 1,000 N/mm² | 22 | 0,110 | 0,130 | 0,150 | 0,170 | |
Alloyed quenched and tempered steels | ≤ 1,000 N/mm² | 17 | 0,170 | 0,180 | 0,210 | 0,240 |
≤ 1,400 N/mm² | 13 | 0,110 | 0,130 | 0,150 | 0,170 | |
Nitriding steels | ≤ 1,000 N/mm² | 17 | 0,110 | 0,130 | 0,150 | 0,170 |
≤ 1,400 N/mm² | 13 | 0,070 | 0,080 | 0,090 | 0,120 | |
Tool steels | ≤ 850 N/mm² | 19 | 0,110 | 0,130 | 0,150 | 0,170 |
≤ 1,400 N/mm² | 17 | 0,070 | 0,080 | 0,090 | 0,120 | |
High-speed steels | ≤ 1,400 N/mm² | 17 | 0,070 | 0,080 | 0,090 | 0,120 |
Cast metals | ||||||
Cast iron | ≤ 240 HB | 19 | 0,170 | 0,180 | 0,210 | 0,240 |
≤ 350 HB | 17 | 0,170 | 0,180 | 0,210 | 0,240 | |
Spheroidal graphite and malleable iron | ≤ 240 HB | 17 | 0,170 | 0,180 | 0,210 | 0,240 |
≤ 350 HB | 17 | 0,170 | 0,180 | 0,210 | 0,240 | |
Chilled cast iron | ≤ 350 HB | 12 | 0,070 | 0,080 | 0,090 | 0,120 |
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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