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6% Cobalt Ground Carbide Rods K20 3.175mm 0.4μM Grain Size For PCB Drills

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6% Cobalt Ground Carbide Rods K20 3.175mm 0.4μM Grain Size For PCB Drills

Name: 6 Cobalt Ground Carbide Rods K20 3175mm 04μM Grain Size For PCB Drills
Brand: OUQI
Price: 1 USD

Brand Name : OUQI

Model Number : Cut-to-length carbide rods

Certification : ISO9001:2008 ISO14001:2004

Place of Origin : China

MOQ : 10pc

Price : negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 5000kgs per month

Delivery Time : Standard products in one week

Packaging Details : plastic box/box + Cartons

Material : Tungseten carbide

ISO Grade : K30/K40

Diameter : OD3.175mm h6

Leght : 38.1mm

Tolerance : h6/h5 or as required

Surface Roughness : Ra 0.05

Circularity : 0.02-0.05

straightness : 0.02-0.05

Cobalt : 6%

Hardness : HRA 94.1

T.R.S : 3800-4000

Grain size : Nano

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K20 6% Cobalt Ground carbide rods with 0.4μm grain size for PCB drills

Grain	Cobalt	Density	Hardness	T.R.S	Application
um	%	g/cm3	HRA	N/mm3	Application
0.4	6	14.7	94.1	3800	Ultra-fine grains, suitable for making end mills and engraving cutters with high wear resistance requirements, suitable for processing PCB materials, acrylic materials, and high-hardness aluminum alloys.

Specification:

ISO grade K40
Diameter: 3.175mm h6 tolerance -0.009mm

Length 38.1mm +0.5mm

Grain size: 0.4μm

Density: 14.7

6% Cobalt Ground Carbide Rods K20 3.175mm 0.4μM Grain Size For PCB Drills

Applications:

Extremely high wear resistance and strength, suitable for high-hard materials (HRC55 and above) finishing, 316L stainless steel, high-gloss surface treatment of aluminum alloy, titanium alloy, stainless steel, high-temperature alloy and other difficult-to-machine materials (composite wood)

Description:

100% virgin material, no recycled material
Spray drying tower and HIP sintering furnace
Constant excellent quality
Large stock for all sizes
100% inspected before delivery
Fast delivery time, regular products can be shipped in 3 days.
Excellent grinding quality, Straightless could be 0.05 or 0.02.

6% Cobalt Ground Carbide Rods K20 3.175mm 0.4μM Grain Size For PCB Drills

Diameter mm		Length mm		Diameter mm		Length mm
D	Tolerance	L	Tolerance	D	Tolerance	L	Tolerance
1.60	+0/-0.006	20	0/+0.5	10.00	+0/-0.009	50	0/+0.5
2.35		30	0/+0.5	10.00		70	0/+0.5
2.35		45	0/+0.5	10.00		72	0/+0.5
3.00		60	0/+0.5	10.00		75	0/+0.5
4.00	+0/-0.008	40	0/+0.5	10.00		80	0/+0.5
4.00		46	0/+0.5	10.00		90	0/+0.5
4.00		50	0/+0.5	10.00		100	0/+0.5
4.00		60	0/+0.5	12.00	+0/-0.011	70	0/+0.5
4.00		75	0/+0.5	12.00		79	0/+0.5
4.00		100	0/+0.5	12.00		83	0/+0.5
5.00		50	0/+0.5	12.00		100	0/+0.5
5.00		60	0/+0.5	12.00		120	0/+0.5
5.00		100	0/+0.5	13.00		100	0/+0.5
6.00		40	0/+0.5	14.00		75	0/+0.5
6.00		50	0/+0.5	14.00		80	0/+0.5
6.00		58	0/+0.5	14.00		83	0/+0.5
6.00		60	0/+0.5	14.00		100	0/+0.5
6.00		67	0/+0.5	16.00		80	0/+0.5
6.00		75	0/+0.5	16.00		90	0/+0.5
6		100	0/+0.5	20.00	+0/-0.013	100	0/+0.5
8	+0/-0.009	50	0/+0.5
8		60	0/+0.5
8		63	0/+0.5
8		75	0/+0.5
8		90	0/+0.5
8		100	0/+0.5

General tolerance for the h6 finished ground solid carbide rods
Diameter	Tolerance μm	Length	Tolerance	Straightness	Tolerance	Circularity	Tolerances
＜3.0	-6/0	＜100.0	+0.5/+1.0	＜4.0	0.07	<3,0	2,0 micron
3.0-6.0	-8/0	100.0-165.0	+1.0/+2.5	4.5-5.0	0.06	3,0- 6,0	2,5 micron
6.0-1.0	-9/0	165.0-335.0	+1.0/+6.0	5.5-12	0.05	6,1-10,0	3,0 micron
10.0-18.0	-11/0			＞12.5	0.04	10,1-18,0	3,5 micron
18.0-30.0	-13/0					18,1- 30,0	4,0 micron
30.0-50.0	-16/0					30,1- 50,0	5,0 micron

Grades for tungsten carbide rods:

6% Cobalt Ground Carbide Rods K20 3.175mm 0.4μM Grain Size For PCB Drills

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6% Cobalt Ground Carbide Rods K20 3.175mm 0.4μM Grain Size For PCB Drills

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6% Cobalt Ground Carbide Rods

K20 Cobalt Ground Carbide Rods

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