Step and Pilot Tools may be incorporated in an application to eliminate two-three subsequent operations in a single hole. The use of a step tool dramatically reduces cycle time, scrap, and eccentricity between diameters.
Step drills have manufacturing limitations depending on extreme diameter ranges in the steps. Special carbide developing may sometimes be necessary due to the coolant hole location. Additionally, chip breakers may be required due to a lack of an inside angle which curls and breaks the chips under normal circumstances. Ideally using this type of drill yields virtually no eccentricity between diameters.
Non-cutting pilot drills are used to follow an existing hole while cutting a larger diameter and reducing cycle times plus minimizing eccentricity between holes.
MULTI-DIAMETER STEP GUNDRILLS
Many parts require as many as two, three, or four various size holes in a single bore. Certain applications may allow a single multi-diameter gundrill to produce all or some of these holes, reducing machining time. Solid carbide tips ground to print tolerances enabling multiple diameters to be produced in a single pass.
why choose us ?
1.Quality control: all our tools are through precision test before shipping. we have 10 set testing machine.
2.Manufacture’s price: We are manufactures,all price are factory price, competitive price
3.Promptly reply: Your inquiry related to our tools, we will reply you within in 24 hours.
4. OEM & ODM accepted: We could produce tools as per your drawing.
5.Protection of your sales area,ideas of design and all your private information.
6.Gun drill service is best
The size :
|Tip diameter(mm)||Carbide length(mm)||Grinding length(mm)||Tolerance(mm)|
1. We are Integration of Industry and Trade manufacturing tungsten carbide series product,Widest product range, Best production capability, Best quality control, Best Service, Competitive price;
2. 100% QC inspection before shipment;
3.Feedback within 24 hours and Good English Communication;
4.Good training export sales can give professional suggestion on product;
5.Customized making according to your drawing papers;
6.Accept trial order and small order;
7.Accept all payment terms of T/T, L/C, western union, Paypal,Trade Assurance,etc.;
8.Offer free samples under the condition of freight paid by customer;
9.Survey Email of products usage will be sent timely to listen your feedback,our aim is trying to make every customer satisfied and we both sides WIN-WIN!
Dezhou Drillstar Cutting Tool Co., Ltd is a manufacturer and exporter of deep hole cutting tools including gun drills, gun reamers, BTA, Trepanning, boring tools, honing tools etc, as well as tool accessories. We also distribute cutting oils, cutter grinder, oil spray pump complete kit on the deep hole drilling field. We are engaged in designing products in compliance with international quality standards with best configuration to offer excellent productivity and quality to clients.Started in the year 2010, we have occupied a strong foothold in the domestic market and have also acquired many clients in South East Asia, Europe and others. We are One-Stop solution provider for deep hole cutting tools.In addition to this, we are an importer of Tungsten Carbide Tips & Rods and other raw materials from Europe and USA
Q1: What is the Warranty for the tungsten carbide products ?
A1: We own high precision grading machine to control geometry dimensions and apply ultra fine grain size substrate coated with high performance coatings to guarantee the lifetime of our products, which can satisfy every working condition.If any quality problems on our side occurred in this period , we will take on the shipping cost and replacement.
Q2: Do you provide free samples?
A2: Yes, usually we provide free samples for testing under the condition of freight paid by customer.
Q3: What is your minimum order requirement?
A3: We will indicate the MOQ for each item in the quotation sheet. We accept the sample and trial order. If the quantity of single item can’t reach the MOQ, the price should be sample price.
Q4: What is the delivery time of your products?
A4: It depends on the inventory availability.If items needed are in stock, the delivery time would be within 8 work days, but if not the delivery time would be around 20 work days.
Q5: Can you manufacture carbide Special-shaped products?
A5: Yes, we can. We can produce both standard end mills and special tools. We can make them according to your drawings and samples.
Q6: May I have my order working schedule ?
A6: Yes, we will send working schedule of your order each week. We will inspect and test all merchandise in case of damaging and missing parts before shipment. The detailed inspection pictures of the order will be sent to you for your confirmation before delivery.
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