K40 Cemented Carbide Milling Blanks Non Ferrous Metals End Mill Bits HRA 92.2

Brand Name:OUQI
Certification:ISO9001:2008 ISO14001:2004
Model Number:Endmills blanks
Minimum Order Quantity:10pc
Delivery Time:Standard products in one week
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location: Zhuzhou Hunan China
Address: Block B, building 4, Area B, Hi Tech New Makin Valley Xiangyuehuan Road, Tianyuan District, Zhuzhou, Hunan, China
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K40 Cemented carbide milling blanks Non-ferrous metals endmills with hardness HRA 92.2


ISOGrain sizeCobaltDensityHardnessT.R.Sk1C
Codeμm%g/cm3HRAN/mm2Mpa.m1/2
K400.61014.4592.2400010.7

Application: Ultra-fine grain size, excellent heat resistance, suitable for high-speed milling and drilling, especially suit for making overall drill bits. Suitable to process alloy steel, heat-resistant alloy, cast iron, non-ferrous metals, stainless steel and other materials.



Regular size for small drills:

Diameter mmLength mmDiameter mmLength mm
DToleranceLToleranceDToleranceLTolerance
1.60+0/-0.006200/+0.510.00+0/-0.009500/+0.5
2.35300/+0.510.00700/+0.5
2.35450/+0.510.00720/+0.5
3.00600/+0.510.00750/+0.5
4.00+0/-0.008400/+0.510.00800/+0.5
4.00460/+0.510.00900/+0.5
4.00500/+0.510.001000/+0.5
4.00600/+0.512.00+0/-0.011700/+0.5
4.00750/+0.512.00790/+0.5
4.001000/+0.512.00830/+0.5
5.00500/+0.512.001000/+0.5
5.00600/+0.512.001200/+0.5
5.001000/+0.513.001000/+0.5
6.00400/+0.514.00750/+0.5
6.00500/+0.514.00800/+0.5
6.00580/+0.514.00830/+0.5
6.00600/+0.514.001000/+0.5
6.00670/+0.516.00800/+0.5
6.00750/+0.516.00900/+0.5
61000/+0.520.00+0/-0.0131000/+0.5
8+0/-0.009500/+0.5
8600/+0.5
8630/+0.5
8750/+0.5
8900/+0.5
81000/+0.5


General Tolerance for ground carbide rods

General tolerance for the h6 finished ground solid carbide rods
DiameterTolerance μmLengthToleranceStraightnessToleranceCircularityTolerances
3.0-6/0100.0+0.5/+1.04.00.07<3,02,0 micron
3.0-6.0-8/0100.0-165.0+1.0/+2.54.5-5.00.063,0- 6,02,5 micron
6.0-1.0-9/0165.0-335.0+1.0/+6.05.5-120.056,1-10,03,0 micron
10.0-18.0-11/012.50.0410,1-18,03,5 micron
18.0-30.0-13/018,1- 30,04,0 micron
30.0-50.0-16/030,1- 50,05,0 micron

General tolerance for the h5 finished ground solid carbide rods
DiameterTolerance μmLengthToleranceStraightnessToleranceCircularityTolerances
3.0-4/0100.0+0.5/+1.04.00.07<3,02,0 micron
3.0-6.0-5/0100.0-165.0+1.0/+2.54.5-5.00.063,0- 6,02,5 micron
6.0-1.0-6/0165.0-335.0+1.0/+6.05.5-120.056,1-10,03,0 micron
10.0-18.0-8/012.50.0410,1-18,03,5 micron
18.0-30.0-9/018,1- 30,04,0 micron
30.0-50.0-11/030,1- 50,05,0 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.

Carbide grades


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China K40 Cemented Carbide Milling Blanks Non Ferrous Metals End Mill Bits HRA 92.2 supplier

K40 Cemented Carbide Milling Blanks Non Ferrous Metals End Mill Bits HRA 92.2

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