Outer Diameter mm		TK mm		Inner Diameter mm		Deviation of holes position≤(mm) a	Pitch mm
OD	Tol.	TK	Tol.	ID	Tol.	Deviation of holes position≤(mm) a	P	Tol.
3.30	+0/+0.3	1.7	-0.3/0	0.400	±0.1	0.80	16.32	±0.23
4.30	+0/+0.4	2.2	-0.3/0	0.600	±0.15	0.80	21.77	±0.31
5.30		2.6	-0.4/0	0.700	±0.15	0.10	27.21	±0.38
6.30		2.6	-0.4/0	0.700	±0.15	0.13	32.65	±0.46
6.30		2.6	-0.4/0	1.000	±0.15	0.15	32.65	±0.46
7.30		3.7	-0.4/0	1.000	±0.15	0.15	38.09	±0.54
8.30		4.0	-0.4/0	1.000	±0.15	0.15	43.53	±0.62
8.30		3.5	-0.4/0	1.000	±0.15	0.15	42.53	±0.62
8.30		2.8	-0.4/0	1.000	±0.15	0.15	43.53	±0.62
9.30		4.8	-0.6/0	1.400	±0.15	0.20	48.97	±0.62
10.30	+0/+0.6	4.8	-0.6/0	1.400	±0.15	0.20	54.41	±0.77
10.30		2.6	-0.4/0	0.700	±0.15	0.20	54.41	±0.77
10.30		3.0	-0.4/0	1.000	±0.15	0.20	54.41	±0.77
10.30		5.0	-0.6/0	1.400	±0.15	0.20	54.41	±0.77
11.30		5.3	-0.8/0	1.400	±0.15	0.28	59.86	±0.85
12.30		6.3	-0.8/0	1.400	±0.15	0.30	65.3	±0.92
12.30		6.0	-0.8/0	1.750	±0.2	0.30	65.3	±1.00
13.3		6.5	-0.8/0	1.750	±0.2	0.34	70.74	±1.08
14.3		7.1	-0.8/0	1.750	±0.2	0.37	16.18	±1.08
14.3		3.5	-0.4/0	0.800	±0.15	0.37	76.18	±1.08
14.3		4.5	-0.6/0	1.400	±0.15	0.37	76.18	±1.08
15.3		7.7	-0.8/0	1.750	±0.2	0.4	81.62	±1.08
16.3		8.3	-0.8/0	1.750	±0.2	0.4	87.06	±1.23
16.3		8	-0.8/0	2.000	±0.2	0.4	87.06	±1.23
17.3		8.9	-0.8/0	1.750	±0.2	0.47	92.5	±1.31
18.3		9.55	-0.8/0	2.000	±0.2	0.5	97.95	±1.38
18.3		9.15	-0.8/0	1.750	±0.2	0.5	97.95	±1.38
19.3		10	-0.8/0	2.000	±0.2	0.5	103.39	±1.46
20.3		10.4	-1.0/0	2.000	±0.2	0.5	108.83	±1.54

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

Our tungsten carbide rods:

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.

Graphite Helical Coolant Hole Rod K10 Tungsten Carbide Composite Rods