twist drill with cooling hole,twist drill bits

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E-samples: P97

twist drill with cooling hole,twist drill bits
P30 UC6025 GH330 AC3000 CA335 JC215 CY30 GC4025 KC935 TN250
US735 T325 AC304 PR630 JC325 CY250 GC235 KC850 TN35
U625 TX30 A30N PR660 JC4030 HC844 GC4035 KC710 TN25M
UP20M UX30 A30 PR930 SR30 EX35 GC-A CG4 GK TPC25
STI30     CR9025 DX30 EX40 SM30 K2885 TPC35
UTI20T     PW30 DX25   S30T K420 TN450
        DX35     KM TTR TTM
              K600 GX TTR
(N10 HTI10 TH10 EH10 KG10 K10K313 )
 (M20 GM127 CNX725 RW2110)
(K20 G-10 CYC600 YG6 )
(S10 EH510 H10F K313 )
(K10 2A5 H216T H10T G-920 CX2515 YG6A GW620H UH10 CS310 BK6M 741 )
Super-hard processing of professional, special, non-standard, special shaped and  new  products with any kind, any shape and tolerance.
If you have any similar inquiry, please fax us your address or call us to get samples in the photos and related catalogue for your reference (only a small amount is allowed).
Super-hard drill bits for high hardness application
For other size specification and special micro-diameter, forming compound tooling, we can process according to drawings or samples.
Machining case: φ8.50 mill diameter (emulsified liquid), SKD11HRC62°,rotation speed 1600r/min, f≤199mm/min,
depth of drilled hole≤2.5*φD(mill Dia.), Precision of processed work piece ≥h9, surface finish more than Ra1.6
Extra hard small diameter: mill Dia. φD φ0.10-φ2.00mm, applicable for machining of quenched steel of HRC≤62° and various high
hard materials, compound materials, the depth of drilled hole ≤6*φD
mill Dia.
HRF 10 (For super high wear-resistant):
Ultra micro-grain quality carbide is ultra high wear resistant, but less impact-resistant.It is applied in mid and low speed light cutting of
 various materials that require ultra high wear resistance. Generally, it is applied in good work condition, stable cutting, good part fixture and
 continuous light-duty machining. Comparing with general tungsten steel, it has 3~5 times more life time. Conforming to ISO K10~K25/P10~P25.
VRA201: Imported ultra micro-grain quality carbide, with excellent impact-resistance and general wear-resistance. Generally applied in worse or general equipment to machine materials of lower hardness HRC≤25°, discontinuous cutting and worse part fixture. Conforming to ISO K25, can replace machining of materials like M42, ASP60, MPM, HSSCo10 etc, and can get 4-6 times lifetime, it has higher performance/price ration. Comparing with SKH51, it has 15-25 times lifetime and durability.
HRF10: ultra micro-grain quality carbide, has excellent wear resistance, but its impact resistance is not so good. It is applicable for medium and low speed cutting of high hardness materials(HRC45°-65°) requiring thermal refining and quenching or for various materials having higher wear resistance and non-ferrous metal. Generally it is applied in good working condition\stable cutting\excellent part fixing and continuous light machining. Corresponding to ISO K10.
ASP60C :
mported ultra high wear-resistant high-grade high cobalt powder steel, quenched:HRC70°±2°, with excellent wear resistance and impact resistance. Comparing with HSSE\HSS-AL and HSSCo, it has 4~8 times lifetime, and can guarantee uniformity and conformity rate of machined products. It is often applied in general equipment for machining various materials including Ni\Cr\Mo\Si\Ti) that are hard to machine like high alloy\heat-resistant alloy\cast iron of nickel-vanadium-titanium alloy\stainless steel. It is excellent machining tool before heat treatment. It has excellent high temperature machining and comprehensive performance, and allows higher cutting speed. The higher the hardness of machined materials, the more remarkable the effect. Because its roughness is not so good, it is not suitable for discontinuous cutting or for using under processing system of insufficient rigidity, otherwise, cutter will be hit or chipping will happen.
super micro-grain diamond tungsten steel, extensively applied, it can be applied in medium speed cutting and finish cutting of various materials with HRC28°. It has excellent impact resistance and general wear resistance, and has extensive application. Generally, it is applied for thicker cutting, discontinuous cutting and bad part fixture. After being coated, it has better result, can machine various materials of HRC50°. Comparing with ISOK20&general tungsten steel, it has 1-2 times lifetime and excellent wear resistance


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