GB/T 16770.2-2008Solid hardmetal end mills with parallel shank - Part 2: Technical specifications (English PDF)

1 Scope

This section GB/T 16770 specifies the solid carbide straight shank end mill (hereinafter referred to as end mills) the size, material, appearance, and tables

Surface roughness, marking and packaging of technical conditions.

This section applies to a diameter of 1mm ~ 20mm straight shank cutter.

2 Normative references

The following documents contain provisions which, through reference GB/T 16770 in this section 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 2075 Classification and use of cutting large groups and groups of application of hard cutting materials classification code (GB/T 2075-

2007, ISO 513.2004, IDT)

GB/T 6118-1996 mills technical specifications

3 Dimensions

End mill according to the shape and position tolerances specified in Table 1.

Table 1 millimeters

Radial circumferential edge of the shank axis runout

End edge of the end face runout working portion axis inverted taper shank

~ 6 0.012 0.006

> 6-12

> 12 ~ 20

0.020 0.010

0.020

0.010

0.011

0.015

NOTE. runout detection method according to GB/T 6118-1996 the provisions of Appendix A.

4 Materials

Carbide material according to GB/T 2075 selection.

5 appearance and surface roughness