Finished Solid Ground Carbide Rods 8% Cobalt Kic 9.6 For Making PCB Drills

Price Negotiable

Price: negotiable

MOQ: 10pc

Delivery Time: Standard products in one week

Brand: OUQI

Product Description

8% Cobalt finished ground carbide rods for making micro pcb drills with Kic 9.6

Diameter 0.5mm h6 -0.008mm

Length: 100mm

Surface roughness Ra 0.2

Application: with high hardness 92, good for micro PCB drills

Classification	K20
Co %	8
WC incl. doping	92
Density g/ cm3	14.6
Hardness HV30	1790
Fracture toughness	9.6
Transverse rupture strength	3700
Average grain size	0.6

Regular size for ground carbide rods:

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

General tolerance for the h5 finished ground solid carbide rods
Diameter	Tolerance μm	Length	Tolerance	Straightness	Tolerance	Circularity	Tolerances
＜3.0	-4/0	＜100.0	+0.5/+1.0	＜4.0	0.07	<3,0	2,0 micron
3.0-6.0	-5/0	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	-6/0	165.0-335.0	+1.0/+6.0	5.5-12	0.05	6,1-10,0	3,0 micron
10.0-18.0	-8/0			＞12.5	0.04	10,1-18,0	3,5 micron
18.0-30.0	-9/0					18,1- 30,0	4,0 micron
30.0-50.0	-11/0					30,1- 50,0	5,0 micron

100% virgin material, no recycled material
Spray drying tower and HIP sintering furnace
Constant excellent quality
Large stock for all sizes, the regular products can be shipped in 3 days, and the special rods can be ground in one week.
100% inspected before delivery. The inspection including raw material and dimension report will be sent you before delivery
Excellent grinding quality, Straightless and circularity could be 0.05 or 0.02.