LZQ TOOL CO., LTD. +86-021-50327060
LZQ TOOL CO., LTD. zq@lzqtech.com
LZQ Tools

Stepwise Drill


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).

We keep around RMB 20~30 Million turnover stock articles such as raw material, semi-products, finished products in an ordinary year, we are capable to produce according to drawing or sample provided by the customer, so as to present you a favourable cost-performance ratio…Welcome to visit our factory.

Product Details

We can make any material and any kind of products. HSS, HSS-Co Carbide, Al203, Si3N4, PCBN, PCD, ND…… We can produce straight flute, oblique flute, spiral flute etc. precise grinding machining.


Confirm machined materials, HRC, equipment rigidity (value), quantity, we can grind profile angle and dimensional tolerance according to drawings, samples, and requirements… only produce in batch, can completely replace international first-class products, having higher performance/price ratio.

Referencing Referencing to the page footer, please provide your detailed drawing and samples (Samples should be with the best performance) 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?

A greater aggressive angle, such as ninety degrees, is applicable for very smooth plastics and different materials; it would wear swiftly in hard materials. Such a bit is usually self-starting and can cut very quickly. A shallower angle, such as a hundred and fifty degrees, is perfect for drilling steels and other more difficult materials. This fashion of bit requires a starter hole, however, does not bind or suffer untimely wear so long as an appropriate feed charge is used.

Drill bits with no factor attitude are used in conditions where a blind, flat-bottomed gap is required. These bits are very touchy to changes in lip angle, and even a moderate alternate can result in an inappropriately quick reducing drill bit that will suffer untimely wear.

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  • Stepwise Drill
  • Stepwise Drill

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