Conical countersink blue ring HSS, DIN 335C, 90° - CNTSNK-CONI-MA-BLUE-HSS-90DGR-D20,5MM

Conical countersink blue ring HSS, DIN 335C, 90° - CNTSNK-CONI-MA-BLUE-HSS-90DGR-D20,5MM - 1

Conical countersink blue ring HSS, DIN 335C, 90°

Name: Conical countersink blue ring HSS, DIN 335C, 90°
Brand: Würth
SKU: 069401720

Conical countersink HSS, blue ring
CNTSNK-CONI-MA-BLUE-HSS-90DGR-D20,5MM
ZEBRA

Art.-no. 069401720

EAN 4011231603225

All versions

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Conical countersink blue ring HSS, DIN 335C, 90°

Art.-no. 069401720

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x 1 pcs

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Designed specifically for processing conventional steels and cast iron.

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

Datasheets(X)

Certificates/ Documents


Material to be processed	Steel Cast metal
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	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 Non-alloyed tempering steels Alloyed tempering steels Nitriding steels Tool steels High-speed steels Cast iron Ductile iron Malleable cast iron White cast iron

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
v_c = cutting speed [m/min]
f = feed (mm/r)
The suggested cutting values are reference values and must be adapted to the respective conditions.

Additional accessory:

Product

Description

Quantity

Price
/PU

CUT+COOL drilling and cutting oil

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

Art.-no. 0893050004

Multi cutting oil for light to medium machining work

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Example 1: Screw with dimensions of 4x10 mm:
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Example 2: Screw with dimensions of 10x20 mm:
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005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076

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