GB/T 6335.2-2010 English PDF

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GB/T 6335.2-2010: Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications
Status: Valid

GB/T 6335.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6335.2-2010	139	Add to Cart	3 days	Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications	Valid
GB/T 6335.2-1996	199	Add to Cart	2 days	Rotary and rotary impact masonry drill bits with hardmetal tips. Part 2: Technical specifications	Obsolete

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Basic data

Standard ID: GB/T 6335.2-2010 (GB/T6335.2-2010)
Description (Translated English): Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J41
Classification of International Standard: 25.100.30
Word Count Estimation: 6,653
Date of Issue: 2010-12-23
Date of Implementation: 2011-07-01
Older Standard (superseded by this standard): GB/T 6335.2-1996
Quoted Standard: GB/T 6335.1; GB/T 18376.2
Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165)
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 rotation and rotary impact masonry drill carbide (hereinafter referred to as the impact of drilling) the size and position tolerances, appearance and surface roughness, signs and basic requirements for packaging, material and hardness, performance test. This section applies to brick, hole diameter on the block and lightweight materials such as wall 4 mm ~ 25 mm rotary and rotary impact masonry drill bits Carbide. This section does not apply to rock drill.

GB/T 6335.2-2010: Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications

---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.
Rotary and rotary impact masonry drill bits with hardmetal tips Part 2. Technical specifications ICS 25.100.30 J41 National Standards of People's Republic of China Replacing GB/T 6335.2-1996 Rotary and rotary impact masonry drill bits Carbide Part 2. Technical requirements Part 2. Technicalspecifications Issued on. 2010-12-23 2011-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 6335 "Rotary and rotary impact masonry drill bits Carbide" is divided into two parts. --- Part 1. Dimensions; --- Part 2. Technical requirements. This is Part 2 GB/T 6335's. This Part replaces GB/T 6335.2-1996 "Rotary and rotary impact masonry drill bits with hardmetal tips - Part 2. technical conditions." This portion of the GB/T 6335.2-1996 compared to the main changes are as follows. --- Chapter 2 original standard reference standard JB/T 8369 is amended as GB/T 18376.2; --- Modify the original 5.1 standard 4.3.1 "impact drill with a carbide blade according to the provisions of GB/T 18376.2 of"; --- Original standard 8.1.1 to 4.5.1.1 of modification "shall be marked on the product"; --- Original standard 8.1.1a) modify the 4.5.1.1 "diameter"; --- Original standard 8.1.2b) modify the 4.5.1.2 "labeled products." This section of Appendix A normative appendix. 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, Changzhou xixiashu tools industry Productivity Promotion Center. The main drafters of this section. Lucy Liu, Zou Chunying, check States soldiers. This part of the standard replaces the previous editions are. --- GB/T 6335-1986; --- GB/T 6335.2-1996. Rotary and rotary impact masonry drill bits Carbide Part 2. Technical requirements

1 Scope

GB/T 6335 provisions of this part of the Rotary and rotary impact masonry drill bits carbide (hereinafter referred to as the hammer drill) the size and location Tolerance, appearance and surface roughness, and material hardness, performance testing, marking and packing of the basic requirements. This section applies to drilling diameter in brick, masonry and light wall materials such as 4mm ~ Rotary and rotary impact type of rigid 25mm Alloy construction workers drilling. This section does not apply to a rock bit.

2 Normative references

The following documents contain provisions by GB/T 6335 this part of the reference in terms 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 6335.1 Rotary and rotary impact masonry drill bits with hardmetal tips - Part 1. Size (GB/T 6335.1-2010, ISO 5468.2006, Rotaryandrotaryimpactmasonrydrilbitswithhardmetaltips-Dimensions, MOD) GB/T 18376.2 carbide grade Part 2. geology, mining tools with carbide grade

3 Symbol

d --- Impact Drill diameter; l --- overhang. 4. Technical Requirements 4.1 size and position tolerances Hammer drill size should be consistent with the provisions of GB/T 6335.1, the position tolerances according to Table 1. Table 1 millimeters Item d ≤50 > 50 ~ 100 > 100 ~ 200 > 300 ~ 400 > 400 ~ 550 Radial shank positioned round the axis of the tool body Runout 4-8 1.0 1.5 > 25 ~ 8 1.5 2.0 2.5 2.75 Cylindrical carbide blade of the cutter body axis The Symmetry 4-6 0.20 > 0.35 6-8 > 8 ~ 16 0.50 > 16 1.00 The cutting edge of the cutter body axis oblique circle beat 4 ~ 25 0.50 NOTE. Drills shock tolerance position detection method in accordance with Appendix A. ......

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