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HSS 90° yellow-ring countersink DIN 335C - CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM HSS 90° yellow-ring countersink DIN 335C - CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM HSS 90° yellow-ring countersink DIN 335C - CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM
HSS 90° yellow-ring countersink DIN 335C - CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM - 1
HSS 90° yellow-ring countersink DIN 335C - CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM - 2
HSS 90° yellow-ring countersink DIN 335C - CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM - 3

HSS 90° yellow-ring countersink DIN 335C

Conical countersink HSS, yellow ring
CNTSNK-CONI-MA-YELLOW-HSS-90DGR-D31MM
ZEBRA

Art.-no. 069401831
EAN 4011231603331
All versions

Prices for customers after login
HSS 90° yellow-ring countersink DIN 335C

Art.-no. 069401831

Prices for customers after login
Quantity
PU
x 1 pcs

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Designed specifically for processing aluminium, copper, aluminium alloys and plastics

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

Product information

Würth Catalogue

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Material to be processed

Aluminium

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

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

Aluminium, Aluminium alloys, Aluminium wrought alloys, Aluminium casting alloys (<10% silicon), Aluminium casting alloys (>10% silicon), Magnesium alloys, Copper, Brass, short-chipping, Brass, long-chipping, Bronze, short-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic, Plastics, aramide-fibre reinforced, Plastics, glass/carbon-fibre-reinforced

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
Aluminium and aluminium alloys ≤ 400 N/mm² 90 0,210 0,230 0,260 0,300
Wrought aluminium alloys ≤ 650 N/mm² 70 0,210 0,230 0,260 0,300
Cast aluminium alloys ≤ 10% Si ≤ 600 N/mm² 40 0,170 0,180 0,210 0,240
Cast aluminium alloys > 10% Si ≤ 600 N/mm² 30 0,170 0,180 0,210 0,240
Magnesium alloys ≤ 400 N/mm² 100 0,210 0,230 0,260 0,300
Copper, low-alloyed ≤ 500 N/mm² 60 0,210 0,230 0,260 0,300
Brass, short-chipping ≤ 600 N/mm² 80 0,210 0,230 0,260 0,300
Brass, long-chipping ≤ 600 N/mm² 50 0,210 0,230 0,260 0,300
Bronze, short-chipping ≤ 600 N/mm² 30 0,210 0,230 0,260 0,300
≤ 850 N/mm² 26 0,210 0,230 0,260 0,300
Bronze, long-chipping ≤ 850 N/mm² 24 0,210 0,230 0,260 0,300
≤ 1000 N/mm² 20 0,210 0,230 0,260 0,300
Plastics ≤ 150 N/mm² 30 0,210 0,230 0,260 0,300
For dia. 6.3–12.4
Material designation Tensile strength vc f
Dia. 6.3 Dia. 8.3 Dia. 10.4 Dia. 12.4
Aluminium and aluminium alloys ≤ 400 N/mm² 90 0,150 0,160 0,170 0,190
Wrought aluminium alloys ≤ 650 N/mm² 70 0,150 0,160 0,170 0,190
Cast aluminium alloys ≤ 10% Si ≤ 600 N/mm² 40 0,120 0,130 0,140 0,150
Cast aluminium alloys > 10% Si ≤ 600 N/mm² 30 0,120 0,130 0,140 0,150
Magnesium alloys ≤ 400 N/mm² 100 0,150 0,160 0,170 0,190
Copper, low-alloyed ≤ 500 N/mm² 60 0,150 0,160 0,170 0,190
Brass, short-chipping ≤ 600 N/mm² 80 0,150 0,160 0,170 0,190
Brass, long-chipping ≤ 600 N/mm² 50 0,150 0,160 0,170 0,190
Bronze, short-chipping ≤ 600 N/mm² 30 0,150 0,160 0,170 0,190
≤ 850 N/mm² 26 0,150 0,160 0,170 0,190
Bronze, long-chipping ≤ 850 N/mm² 24 0,150 0,160 0,170 0,190
≤ 1000 N/mm² 20 0,150 0,160 0,170 0,190
Plastics ≤ 150 N/mm² 30 0,150 0,160 0,170 0,190
Additive article:
 
Product
Description
Quantity
PU
Price
/PU
CUT+COOL drilling and cutting oil
CUT+COOL drilling and cutting oil

CUTOIL-DRILL-(CUT-COOL)-400ML

Multi cutting oil for light to medium machining work
The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with Easy-/VarioScan. The packaging unit will be determined automatically.
The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
VVVVAAABBB
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
VVVVAAABBB
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076
Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units
The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).

Art.-no.
Cust. Mat. No.

Hazardous Material

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