EU HSCo 90° countersink DIN 335C
Conical countersink EU HSCo
CNTSNK-CONI-EU-HSCO-90DGR-D20,5MM
ZEBRA
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Extremely uneven pitch
- Maximum surface quality: exact, round, chatter-free countersinks
- Faster processing thanks to higher cutting speeds
- Greatly reduced tool wear
- Maximum smoothness in all materials
- Much less feed force required
3-face shank
No slippage, ideal for use in hand drills with 3-jaw chuck
Universal application
Processing of almost all materials possible thanks to special tip geometry and HSCo cutting material.
Sustainable product packaging made from 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified® in Bronze
Datasheets(X)
Material to be processed | Steel |
Quality | ZEBRA-Premium |
Spot-facer diameter (d1) | 20.5 mm |
Shank diameter (d2) | 10 mm |
Tip diameter (d3) | 3.5 mm |
Length (l1) | 63 mm |
Number of cutting edges (Z) | 3 PCS |
Standards | DIN 335 |
Form | C |
Cutting material | HSCo |
Countersink angle | 90 Degree |
Surface | Uncoated |
Shank style | 3-face shank |
Service life (points system) | 3 of 4 points |
Countersinking speed (point system) | 3 of 4 points |
Countersinking quality (point system) | 4 of 4 points |
Versatility (points system) | 4 of 4 points |
Countersinking behaviour (point system) | 4 of 4 points |
Material of sub-group | General structural steels |
Assignment of conical countersink to screw standards: | ||
Countersink diameter | 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) | |
4.3 mm | M2 | M2 |
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 mm | M10, M12 | M12 |
31 mm | M16 | - |
37 mm | M20 | M16 |
Cutting values | |||||||
For dia. 4.3-12.4 | |||||||
Material designation | Tensile strength | vc | f | ||||
Dia. 4.3 | Dia. 6.3 | Dia. 8.3 | Dia. 10.4 | Dia. 12.4 | |||
Steels | |||||||
General structural steels | ≤ 500 N/mm² | 41 | 0,110 | 0,120 | 0,130 | 0,135 | 0,150 |
≤ 1000 N/mm² | 39 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 | |
Unalloyed heat-treated steels | ≤ 700 N/mm² | 38 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 850 N/mm² | 38 | 0,110 | 0,120 | 0,130 | 0,135 | 0,150 | |
≤ 1000 N/mm² | 31 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 | |
Alloyed heat-treated steels | ≤ 1000 N/mm² | 31 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 1400 N/mm² | 12 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 | |
Nitriding steels | ≤ 1000 N/mm² | 31 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 |
≤ 1400 N/mm² | 12 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 | |
Tool steels | ≤ 850 N/mm² | 31 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 |
≤ 1400 N/mm² | 12 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 | |
High-speed steels | ≤ 1400 N/mm² | 12 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 |
Cast metals | |||||||
Cast iron | ≤ 240 HB | 19 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 350 HB | 17 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 | |
Spheroidal-graphite and malleable iron | ≤ 240 HB | 17 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 |
≤ 350 HB | 17 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 | |
Chilled cast iron | ≤ 350 HB | 12 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 |
High-grade steels | |||||||
Stainless steels, sulphurated | ≤ 900 N/mm² | 8 | 0,060 | 0,068 | 0,081 | 0,090 | 0,100 |
Stainless steels, austenitic | ≤ 1100 N/mm² | 8 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 |
Stainless steels, martensitic | ≤ 1200 N/mm² | 8 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 |
Titanium and titanium alloys | ≤ 850 N/mm² | 8 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 |
≤ 1400 N/mm² | 8 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 | |
Special alloys | ≤ 1600 N/mm² | 6 | 0,060 | 0,070 | 0,080 | 0,090 | 0,100 |
Hard materials | |||||||
Hardox | Hardox 400–500, XAR 320, XAR 400 | 4 | - | 0,070 | 0,080 | 0,080 | 0,090 |
Spring steels | ≤ 350 HB | 8 | 0,030 | 0,040 | 0,050 | 0,060 | 0,060 |
Non-ferrous metals | |||||||
Aluminium and aluminium alloys | ≤ 400 N/mm² | 70 | 0,140 | 0,150 | 0,162 | 0,170 | 0,190 |
Wrought aluminium alloys | ≤ 650 N/mm² | 50 | 0,140 | 0,150 | 0,162 | 0,170 | 0,190 |
Cast aluminium alloys ≤ 10% Si | ≤ 600 N/mm² | 30 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 |
Cast aluminium alloys > 10% Si | ≤ 600 N/mm² | 20 | 0,110 | 0,120 | 0,130 | 0,140 | 0,150 |
Magnesium alloys | ≤ 400 N/mm² | 70 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
Copper, low-alloyed | ≤ 500 N/mm² | 30 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
Brass, short-chipping | ≤ 600 N/mm² | 65 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
Brass, long-chipping | ≤ 600 N/mm² | 40 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
Bronze, short-chipping | ≤ 600 N/mm² | 65 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
≤ 850 N/mm² | 65 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 | |
Bronze, long-chipping | ≤ 850 N/mm² | 40 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
≤ 1000 N/mm² | 40 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 | |
Plastics | |||||||
Plastics | ≤ 150 N/mm² | 30 | 0,140 | 0,150 | 0,160 | 0,170 | 0,190 |
For dia. 16.5–37 | |||||||
Material designation | Tensile strength | vc | f | ||||
Dia. 16.5 | Dia. 20.5 | Dia. 25 | Dia. 31 | Dia. 37 | |||
Steels | |||||||
General structural steels | ≤ 500 N/mm² | 41 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
≤ 1000 N/mm² | 39 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 | |
Unalloyed heat-treated steels | ≤ 700 N/mm² | 38 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
≤ 850 N/mm² | 38 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 | |
≤ 1000 N/mm² | 31 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 | |
Alloyed heat-treated steels | ≤ 1000 N/mm² | 31 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
≤ 1400 N/mm² | 12 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 | |
Nitriding steels | ≤ 1000 N/mm² | 31 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 |
≤ 1400 N/mm² | 12 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 | |
Tool steels | ≤ 850 N/mm² | 31 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 |
≤ 1400 N/mm² | 12 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 | |
High-speed steels | ≤ 1400 N/mm² | 12 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 |
Cast metals | |||||||
Cast iron | ≤ 240 HB | 19 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
≤ 350 HB | 17 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 | |
Spheroidal-graphite and malleable iron | ≤ 240 HB | 17 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
≤ 350 HB | 17 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 | |
Chilled cast iron | ≤ 350 HB | 12 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 |
High-grade steels | |||||||
Stainless steels, sulphurated | ≤ 900 N/mm² | 8 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 |
Stainless steels, austenitic | ≤ 1100 N/mm² | 8 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 |
Stainless steels, martensitic | ≤ 1200 N/mm² | 8 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 |
Titanium and titanium alloys | ≤ 850 N/mm² | 8 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 |
≤ 1400 N/mm² | 8 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 | |
Special alloys | ≤ 1600 N/mm² | 6 | 0,110 | 0,130 | 0,150 | 0,170 | 0,190 |
Hard materials | |||||||
Hardox | Hardox 400–500, XAR 320, XAR 400 | 4 | 0,090 | 0,110 | 0,140 | 0,160 | - |
Spring steels | ≤ 350 HB | 8 | 0,070 | 0,080 | 0,090 | 0,120 | 0,150 |
Non-ferrous metals | |||||||
Aluminium and aluminium alloys | ≤ 400 N/mm² | 70 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
Wrought aluminium alloys | ≤ 650 N/mm² | 50 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
Cast aluminium alloys ≤ 10% Si | ≤ 600 N/mm² | 30 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
Cast aluminium alloys > 10% Si | ≤ 600 N/mm² | 20 | 0,170 | 0,180 | 0,210 | 0,240 | 0,270 |
Magnesium alloys | ≤ 400 N/mm² | 70 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
Copper, low-alloyed | ≤ 500 N/mm² | 30 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
Brass, short-chipping | ≤ 600 N/mm² | 65 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
Brass, long-chipping | ≤ 600 N/mm² | 40 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
Bronze, short-chipping | ≤ 600 N/mm² | 65 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
≤ 850 N/mm² | 65 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 | |
Bronze, long-chipping | ≤ 850 N/mm² | 40 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
≤ 1000 N/mm² | 40 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 | |
Plastics | |||||||
Plastics | ≤ 150 N/mm² | 30 | 0,210 | 0,230 | 0,260 | 0,300 | 0,340 |
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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