Centering drill

Centering drill
High cobalt HSS-Co8(SKH59), ASP60 German standard

(DIN) series complete grinding (2-flute~6-flute) end milling, (2-flute~4-flute) ball milling

2-flute (flute passing center) 45°high helix (MR11) can be applied in normal finish machining and quench-hard finish machining (machining of HRC40°60°)

Type of flute: (standard and non-standard 1-flute~12-flute series mill, reamer): deep groove, round head, end angle R, hollow, oblique flute (tapered), long flute, for aluminum, copper application, chip-dividing groove (for rough mill application)

Mill diameter: (miniature) φ0.10mm---φ53.00mm (solid tungsten steel), φ20.00mm--φ80.00mm (brazing)

Tolerance: (standard and non-standard) tolerance of flute diameter of diamond tungsten steel can be up to ±0.001mm (±1μm) high, and tolerance of holder diameter is more than h6.

Helical angle: 0°,25°,30°,35°,45°,50°,55°,60°

Cold-hard machining replacing grinding can improve precision, hard milling replacing grinding can improve efficiency.

(Non-coated diamond steel tooling for high hardness steel machining can replace TiALN coated ultra micro-grain carbide, ceramics. After cutting, CBN tooling has excellent smoothness and lower tooling cost.)

Miniature and profile compound tooling can be machined according to drawing or sample.

 MR11: (For high wear-resistant application):
Ultra micro-grain quality carbide has property of excellent wear resistance and ideal impact resistance. It is applied in mid, high speed intermediate cutting machining of various materials that HRC 28°～48°. It is an ideal machining tooling for finish machining and material tempering, and it is extensively applied. Comparing with general tungsten steel, it has 2~3 times more lifetime. Generally it is applied in good and stable work conditions, good part fixture and continuous mid, high speed light-duty cutting. After being TiALN coated, it has better performance, can machine various materials of HRC 60° Conforming to ISO K10~K30/P10~P30. It is often applied in CNC equipment to machine various hard-machining materials (containing Ni, Cr, Mo, Si, Ti etc.) like high temperature alloys, heat-resistant alloys, Ni-V-Ti alloys, cast iron, stainless steel etc., ultra excellent machining tools before heat-treatment and after tempering. High temperature machining and integrated property is good, allowing highest cutting speed (generally linear speed is above 120M) and with low feed requirement. The higher hardness of the machining material, the better performance. Due to its bad toughness, it is not applicable for discontinuous cutting or for conditions in which process system's rigidity is not sufficient and there is chattering, jumping, otherwise, the blade will be hit or chipping will happen.

SKH4C: (a kind of high speed steel, which does not rust at all.)（Hardening treatment: HRC60°±2°）
This is super high hardness super mirror finish stainless high speed steel. It is characterized by excellent anti-rust, anti-corrosion, anti-worn (high hardness) and ideal impact resistance properties. It applies to a wide range. Its useful life is 3-6 times than normal stainless products. Moreover, AIS1440C and SUS440C are even better quality of incisiveness and much more excellent anti-worn properties. Under salt water circumstances, it's anti-rust capability could improve more than 10-20 times. Its quality is quite good and stable. we can produce extreme complex and accurate Holder profile.

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.
 

LZQ is possessed of cutting-edge & comprehensive production system, as well as rich producing & machining capability with different precision technology, so as to realize high efficiency application.

From high-class products (via 6-axis/ 7-axis Blocking CNC-machine Tool (Class-AAA))to medium-class products (via 3-axis/ 4-axis Blocking CNC-machine Tool (Class-D)), different quality and price, our reliable products can replace to first-class products, and we are professional in wholesale, R&D, producing & processing, as well as design revision according to client's designs and samples of special, non-standard, abnormal shape and new products with high cost-performance ratio, also our on-demand service will decrease your comprehensive cost greatly!

Referencing to the page footer, please provide your sample and specify the detailed specification, material type, size tolerance, drawing of semi-product and finished product, applied equipment, equipment value (RMB, to judge its market value is rigid or floating), monthly consumed quantity, type of original product and its deficiency, when you make inquiry. What is the processed material and its HRC?