China 5.5mm Carbide Rods With Chamfer HV30 1950 Cut To Length Bar Stock for sale

5.5mm Carbide Rods With Chamfer HV30 1950 Cut To Length Bar Stock

Price Negotiable

Price: negotiable

MOQ: 10pc

Delivery Time: Standard products in one week

Brand: OUQI

Product Description

Micro drills PCB drills 5.5mm with hardness 1950 HV30 ground carbide rods

Dimension:

Outer Diameter: 5.5mm

Tolerance of OD -0.006

Length: 38.5mm

Tolerance of Length:+0.1/+0.4

Roughness: Ra0.1 polished

Suitable for manufacturing micro-drills for machining PCB. It is also suitable for manufacturing various kinds of solid cemented carbide tools for machining glass fiber, wood, plastics, paper and brass, Al alloy, etc.

Regular size for small drills:

Diameter mm		Length
D	Tolerance	L	Tol.
3.25	0/+0.05	38.7	± 0.20
3.25	0/+0.05	38.5	± 0.20
3.50	0/+0.05	38.5	± 0.20
4.00	0/+0.05	38.5	± 0.20
4.50	0/+0.05	38.5	± 0.20
5.00	0/+0.05	38.5	± 0.20
5.50	0/+0.05	38.5	± 0.20
6.00	0/+0.05	38.5	± 0.20
6.50	0/+0.05	38.5	± 0.20
3.50	+0.2/+0.5	12.8	± 0.10
4.00	+0.2/+0.5	12.8	± 0.10
4.50	+0.2/+0.5	12.8	± 0.10
5.00	+0.2/+0.5	12.8	± 0.10
5.50	+0.2/+0.5	12.8	± 0.10
6.00	+0.2/+0.5	12.8	± 0.10
6.50	+0.2/+0.5	12.8	± 0.10
6.85	+0.2/+0.5	12.8	± 0.10

Description:

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 could be 0.05 or 0.02.

Carbide grades

General Tolerance 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