HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GB/T 1438.4-2008 English PDF

US$139.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 1438.4-2008: Taper shank twist drills -- Part 4: The types and dimensions extra-long for Morse taper shank twist drills
Status: Valid

GB/T 1438.4: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 1438.4-2008English139 Add to Cart 3 days [Need to translate] Taper shank twist drills -- Part 4: The types and dimensions extra-long for Morse taper shank twist drills Valid GB/T 1438.4-2008
GB/T 1438.4-1996English199 Add to Cart 2 days [Need to translate] Taper shank twist drills--Part 4: The types and dimensions for extra-long Morse taper shank twist drills Obsolete GB/T 1438.4-1996

PDF similar to GB/T 1438.4-2008


Standard similar to GB/T 1438.4-2008

GB/T 33524.2   GB/T 972   GB/T 5104   GB/T 1443   GB/T 1438.3   GB/T 1438.1   

Basic data

Standard ID GB/T 1438.4-2008 (GB/T1438.4-2008)
Description (Translated English) Taper shank twist drills -- Part 4: The types and dimensions extra-long for Morse taper shank twist drills
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J41
Classification of International Standard 25.100.30
Word Count Estimation 6,611
Date of Issue 2008-11-04
Date of Implementation 2009-04-01
Older Standard (superseded by this standard) GB/T 1438.4-1996
Quoted Standard GB/T 1443
Adopted Standard ISO 3291-1995, MOD
Regulation (derived from) National Standard Approval Announcement 2008 No.18 (Total No.131)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the Morse taper shank long twist types and dimensions. This section applies to a diameter of 6. 00 mm ~ 50. 00 mm and a total length of 200. 00 mm ~ 630. 00 mm long with Morse taper shank twist.

GB/T 1438.4-2008: Taper shank twist drills -- Part 4: The types and dimensions extra-long for Morse taper shank twist drills


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Taper shank twist drills Part 4. The types and dimensions extra-long for Morse taper shank twist drills ICS 25.100.30 J41 National Standards of People's Republic of China Replacing GB/T 1438.4-1996 Taper shank twist drill Part 4. Morse taper shank long twist drill The type and size (ISO 3291.1995, Extra-longMorsetapershankdrils, MOD) Posted 2009-04-01 2008-11-04 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 1438 "taper shank twist" is divided into four parts. --- Part 1. Morse taper shank twist type and size; --- Part 2. Morse taper shank long series twist types and dimensions; --- Part 3. Morse taper shank twist drills lengthened types and dimensions; --- Part 4. Morse taper shank long twist types and dimensions. This section GB/T 1438 Part 4. The partial modification of the use of ISO 3291.1995 "Morse taper shank long twist" (in English). This section according to ISO 3291.1995 re-drafted. This part of ISO 3291.1995 compared to the following technical differences and editorial changes. --- Remove the foreword to international standards; --- Used instead of using decimal comma ",". ","; --- "This International Standard" by "this section"; --- To Tables 1 and 2 were synthesized in a table; --- Increase the marked sample; --- Remove Appendix A. This Part replaces GB/T 1438.4-1996 "taper shank twist drills - Part 4. Morse taper shank long twist types and dimensions." This portion of the GB/T 1438.4-1996 compared to the following technical corrections. --- Increasing the foreword; --- "This standard" to "this Part"; --- Increasing the overall length of 200.00mm ~ 630.00mm requirements in scope; --- Figure 1, increasing the horizontal edge line; --- Table 1 diameter size range were modified; --- The 4.3 "high performance" to "precision." This part is proposed by China Machinery Industry Federation. This part of the tool by the National Standardization Technical Committee (SAC/TC91) centralized. This section is drafted. Chengdu Tool Research Institute, Chengdu into a tool Limited Group. The main drafters of this section. Deng Zhiguang, Zeng Yu ring, Wu Rong. This part of the standard replaces the previous editions are. --- GB 6137-1985, GB/T 1438.4-1996. Taper shank twist drill Part 4. Morse taper shank long twist drill The type and size

1 Scope

GB/T 1438 provisions of this part of the Morse taper shank long twist types and dimensions. This section applies to a diameter of 6.00mm ~ 50.00mm and an overall length of 200.00mm ~ 630.00mm Morse taper shank long hemp Flowers diamond.

2 Normative references

The following documents contain provisions which, through reference to GB/T 1438 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 1443 from machine tools and tool handles with clip cone (GB/T 1443-1996, eqv ISO 296.1991)

3 Symbol

4 type and size

4.1 Morse taper shank long twist type, size according to Figure 1 and Table 1 of the regulations. Figure 1

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 1438.4-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 1438.4-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 1438.4-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 1438.4-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 1438.4-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 1438.4-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.