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HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM
HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM - 1
HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM - 2
HSCo 90° green-ring countersink DIN 335C - CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM - 3

HSCo 90° green-ring countersink DIN 335C

Conical countersink HSCo, green ring
CNTSNK-CONI-MA-GREEN-HSCO-90DGR-D31MM
ZEBRA

Art.-no. 069401931
EAN 4011231603423
All versions
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HSCo 90° green-ring countersink DIN 335C

Art.-no. 069401931

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Quantity
PU
x 1 pcs

Exclusively for trade customers

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Particularly suitable for processing stainless steel, alloyed or high-alloy and rust- and acid-resistant steels.

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

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Material to be processed

Steel, Cast metal, Stainless steel, Titanium, Special alloy

Quality

ZEBRA-Premium

Spot-facer diameter (d1)

31.0 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

HSCo

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)

2 of 4 points

Countersinking behaviour (point system)

2 of 4 points

Material of sub-group

General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, White cast iron, Stainless steels, sulphurated, Stainless steels, austenitic, Stainless steels, martensitic, Titanium, Titanium alloys, Special alloys, Spring steels

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.
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 -
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 0,150 0,120
Stainless steels
Sulphurated stainless steels ≤ 900 N/mm² 18 0,110 0,130 0,150 0,170
Austenitic stainless steels ≤ 1,100 N/mm² 13 0,070 0,080 0,090 0,120
Martensitic stainless steels ≤ 1,200 N/mm² 15 0,070 0,080 0,090 0,120
Titanium and titanium alloys ≤ 850 N/mm² 17 0,110 0,130 0,150 0,170
≤ 1,400 N/mm² 11 0,070 0,080 0,090 0,120
Special alloys ≤ 1,600 N/mm² 9 0,110 0,130 0,150 0,170
Cast metals
Cast iron ≤ 240 HB 28 0,170 0,180 0,210 0,240
≤ 350 HB 18 0,170 0,180 0,210 0,240
Spheroidal graphite and malleable iron ≤ 240 HB 24 0,170 0,180 0,210 0,240
≤ 350 HB 22 0,170 0,180 0,210 0,240
Chilled cast iron ≤ 350 HB 9 0,070 0,080 0,090 0,120
Hard materials
Spring steels ≤ 350 HB 11 0,070 0,080 0,090 0,120
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 0,140 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 0,140 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
Stainless steels
Sulphurated stainless steels ≤ 900 N/mm² 18 0,068 0,081 0,090 0,100
Austenitic stainless steels ≤ 1,100 N/mm² 13 0,040 0,050 0,060 0,060
Martensitic stainless steels ≤ 1,200 N/mm² 15 0,040 0,050 0,060 0,060
Titanium and titanium alloys ≤ 850 N/mm² 17 0,070 0,080 0,090 0,100
≤ 1,400 N/mm² 11 0,040 0,050 0,060 0,060
Special alloys ≤ 1,600 N/mm² 9 0,070 0,080 0,090 0,100
Cast metals
Cast iron ≤ 240 HB 28 0,120 0,130 0,140 0,150
≤ 350 HB 18 0,120 0,130 0,140 0,150
Spheroidal graphite and malleable iron ≤ 240 HB 24 0,120 0,130 0,140 0,150
≤ 350 HB 22 0,120 0,130 0,140 0,150
Chilled cast iron ≤ 350 HB 9 0,040 0,050 0,060 0,060
Hard materials
Spring steels ≤ 350 HB 11 0,040 0,050 0,060 0,060

Art.-no.
Cust. Mat. No.

Hazardous Material

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