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The Solid Carbide Gun Drills

DIAMETERS FROM .0393" (1.0 MM) TO .4375" (11.1 MM)
LENGTHS OF CUT FROM 5" (127 MM) – 14.17" (360MM)

Solid Carbide drills are manufactured as a single piece of carbide. The tip and tube is a single piece product which eliminates the braze joint at the head and tube transition. Thus resulting in an extremely strong, ridged tool. Most small diameter drills significantly benefit from solid carbide drills because they yield the maximum allowable surface footage and feed rates without the whip factor due to their rigidity. Solid carbide drills are manufactured using a new process so excessive lead times are avoided.

The advantage of eliminating the braze joint at the tip and tube transition results in a more rigid tool allowing a faster surface footage and feed rates on small diameter drills.

Advantages:

More Strength and Rigidity

Greater Tool Life

Maximum Productivity and Higher Penetration Rates

SHORTEST LEAD TIMES IN THE INDUSTRY!

Support for Longer Length, Solid Carbide Flute Gun Drills

Although solid flute gun drills are more ridged then their carbide tip / tube flute counterparts, they are susceptible to similar vibration and flexing issues present with traditional gun drills used on conventional & CNC Lathes & milling machines without support(s). Dedicated gun drill machines utilize a chip box and intermediate flute support(s) to provide long gun drill stability.

A general "rule of thumb" when using gun drills on conventional machines is that with drilling depths in excess of 50 times the drill diameter, a gun drill's flute section will need to be supported to minimize vibration and other stress from a long, unbalanced flute section. Most often, any type of mechanical support is not practical on these machines, therefore a more reasonable solution is to use a shorter drill first. The hole drilled by the shorter drill will support the flute of the longer drill. Although this practice is common and often suggested for tube flute gun drills, the same is rarely applied to solid flute drills as the drills don't appear to be that long. However, a 7" depth of cut possible with a 10" overall length solid flute gun drill at .070" diameter is 100 diameters deep! The same multiplier for a 250" drill would be a 25" depth of cut! No one would expect one, 250" drill to cut to that depth without support. Even on a gun drill machine, a 250" gun drill's flute section must be supported every 8 to 16" depending on spindle speed.

The following chart depicts suggested maximums (50x dia.) for solid carbide flute gun drills before employing a second gun drill to complete the total depth. Solid flute gun drills below .062" are manufactured with 5" to 6.3" long rods that limit applications to drill depths up to about 50 times diameter. Solid carbide flute drills larger than .062" and larger are available to 11.5" + overall length with a standard 1.5" long driver, so a shorter drill / longer drill should be considered for drilling depths in excess of 50 x diameter.

Solid carbide gun drill driver types

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  • 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)
    3.02 24.23 21 ±1
    4.02 26.25 23 ±1
    5.02 28.64 25 ±1
    6.02 34 30 ±1
    7.02 34 30 ±1
    8.02 38 33 ±1
    9.02 38 33 ±1
    10.02 37.8 34 ±1
    11.02 37.8 34 ±1
    11.52 37.8 32 ±1
    12.02 37.8 33 ±1
    12.52 37.8 33 ±1
    13.02 37.8 32 ±1
    14.02 42.5 36 ±2
    15.02 48.6 38 ±2
    16.02 48.6 38 ±2
    17.02 47.8 36 ±2
    18.02 47.8 34 ±2
    19.02 47.8 34 ±2
    20.02 47.8 33 ±2
    21.02 56.5 44 ±3
    22.02 58.8 45 ±3
    23.02 58.8 45 ±3
    24.02 60 45 ±3
    25.02 61.8 45 ±3
    26.02 62.6 45 ±3
    27.02 62.4 45 ±3
    28.02 63.3 45 ±3
    29.02 64 45 ±3
    30.02 65 45 ±3

     

     

     

    Our feature:

    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!

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    Fast shipping:

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    Package:

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    Large stock:

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    Company Information

     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

     deepholemachinery1

    FAQ:

     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.

    Your feedback is our best honor, please do not hesitate to give us your valuable feedback and we can let you feel more confident to our company and products.

    if have any problem ,pls contact me 

    skype:lilyhothair20

    deepholemachinery

     

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