This standard specifies the dimensions and technical requirements for interchangeable guide pins for Morse taper shank flat bottom countersinks and 90° cone countersinks. This guide pin can also be used for other types of tools. The figure is only an illustration and is not a design detail. GB/T 4266-2004 Interchangeable guide pins for countersinks GB/T4266-2004 Standard download decompression password: www.bzxz.net

ICS 25.103.30
National Standard of the People's Republic of China
G7T4266-2004
Replaces G12-R
Interchangeable guide column for strontium drill
Detachalle pilots for use with ounlerbores and cuuntersinks(IS0 4208:1977, Detachalle pilots for use with rounterbores anogo'couinka-neon,Mo)www.bzxz.net
Published on February 10, 2004
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China National Standardization Administration
Implemented on August 1, 2004
G0/T 42662004
This standard can be used as a reference 1) 4208:1977 half-bottom cutting and 139 group tile purchase new moon conversion guide address: size small clip text version? This standard is compared with IS>129$:19Y and has the following technical differences and potential changes: standard file.1504201.1$4297 division book 13/1426+, GB/! 4261 replaces "; decimal point is used instead of "; " is prohibited, " is used instead of "; " is used instead of "; "; " is added to the international standard before "; "; "; " adds state marking example: "; " adds and uses the technical requirements to check the original area standard and replace GBT42551981 with replaceable column 3; "; " 4256-1084 is better than the following: "; "; " in the south: the symbols "" and "; the footer is changed, and the corresponding changes are made in the table: the original "total length and guide length" in the magic ruler is changed to "; ... The standard is proposed by the public. The main person in charge of this standard is: the person in charge of this standard, Chengdu Tool Research Institute. The main drafters of this standard are: Shen Shi, Zhan Saozhi, and the representative of this standard: GB:42551984.
Interchangeable guide post for drill
GB/T4256—2004
This standard specifies the dimensions and technical requirements for interchangeable guide posts for flat-bottom drills and 90-degree pin drills with shank. This guide post can be used with other types of knives. The figure is for reference only, and this document is for reference only. 2 Normative references
The relevant clauses in the following documents become the clauses described in this standard through the use of this standard. They are derived documents of the past period, All your revised orders (excluding the content of the quick help! Or the version received shall not be applicable to this standard. However, the parties who have reached an initial agreement based on this standard shall agree to stop using this document. For all undated referenced documents, the latest version applies to the wood standard, CB/T4261 Interchangeable guide drill (H/T4261-2031.IS) 4207:1977.M (DR/T12E4 with interchangeable ± bright can restore 90-dimensional surface drill (GB/T42642004.8O424:1Y,MO) 3 Dimensions
3.1 Dimensions and tolerances
The dimensions and tolerances of the interchangeable belt are shown in Figure 1 and Table 1. Only The metric ruler is specified. In the future, the metric ruler will be used. Figure 1 is in metric. GB/T 4266-2004. 3.2 Marking example. Table 1 (): The sample for Rnm=12.5mr is 8×12.5(:H/1426G-2002. 4 Drawing technical requirements. The same tolerance for the guide rod is u,02. The guide rod is made of steel alloy and the carbon pressure is 4HRC~53HRC. 3 The second limit value of the surface torsion of the guide rod and the non-guide rod is: R.8. 4.3 GB/T 4266-2004
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