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ISO 494:2017 PDF — Cylindrical shank twist drills — Long series — GOST Standards

//ISO 494:2017

ISO 494:2017

Name: ISO 494:2017 — Cylindrical shank twist drills — Long series
SKU: ISO 494:2017
Price: 10800 RUB
Availability: InStock

Cylindrical shank twist drills — Long series

Название (английский):

ISO 494:2017

Cylindrical shank twist drills — Long series

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 24 февраля 2017 г.
Издание:: ISO IS 494 edition 3 version 1
ICS:: 25.100.30

Тип поставки:

Full version10 800 ₽Read online 24h1 200 ₽Read online 72h1 800 ₽

Язык документа:

ruen

Срок поставки:1 раб. дн. (перевод)

Цена:10 800 ₽

Описание (английский):

ISO 494:2017 specifies the dimensions of cylindrical shank twist drills having working lengths in the long series. The cylindrical shank jobber and stub series drills and Morse taper shank drills are given in ISO 235.

Abstract

Overview

ISO 494:2017 - Cylindrical shank twist drills (Long series) specifies the dimensional requirements for cylindrical‑shank twist drills with working lengths in the . The standard defines geometrical dimensions and length rules in millimetres, provides tables of nominal sizes and diameter‑step length ranges, and includes an informative Annex mapping this document’s designations to the cutting‑tool data model.

Key topics and technical requirements

Scope: Dimensions apply only to cylindrical shank twist drills in the long series; jobber, stub and Morse taper shanks are covered by ISO 235.
Units and tolerances: All dimensions and tolerances are expressed in millimetres.
Dimensional tables: Table 1 gives nominal drill diameters, overall lengths and flute (cutting) lengths; Table 2 sets lengths as functions of diameter ranges (diameter steps).
Length tolerance guidance: Lengths l1 and l2 may vary within the min/max values corresponding to adjacent diameter steps (example: for d = 4 mm, one listed nominal shows l1 = 78 mm may vary between 73 and 82 mm).
Cutting length: Cutting (flute) length is at the manufacturer’s discretion, unless otherwise specified by purchaser.
Shank details: Drills are specified to be manufactured without tenon drive and are right‑hand cutting unless specified otherwise.
Data mapping: Annex A relates ISO 494 symbols (d, l1, l2, etc.) to preferred symbols in the ISO 13399 series for digital tool representation.

Applications and who uses this standard

ISO 494:2017 is intended for:

Drill and cutting‑tool manufacturers - to design and produce long‑series cylindrical shank twist drills to consistent dimensions.
Purchasing and specification engineers - to create unambiguous procurement specifications and ensure interchangeability.
Machine shops and production managers - to select appropriate drill lengths and ensure tooling compatibility.
CAD/CAM and tool‑data managers - to map product dimensions into tool‑data systems (via ISO 13399 correspondence).
Quality and inspection teams - to verify drill geometry and length tolerances against standardized tables.

Related standards

ISO 235 - Parallel shank jobber and stub series drills and Morse taper shank drills (complements ISO 494 for other shank/length types).
ISO 13399 - Cutting tool data representation (Annex A provides symbol mapping).

Keywords: ISO 494:2017, cylindrical shank twist drills, long series, drill dimensions, cutting length, shank specifications, ISO 13399, tool standards, machining, drill bit dimensions.

Технические детали

Технический комитет: ISO/TC 29/SC 9 - Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
SKU: ISO 494:2017

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ISO 494:2017

Abstract

Overview

Похожие стандарты

Key topics and technical requirements

Applications and who uses this standard

Related standards

Технические детали

ISO 13399-1:2006

Cutting tool data representation and exchange — Part 1: Overview, fundamental principles and general informat…

BS ISO 23551-8:2023

Safety and control devices for gas burners and gas-burning appliances. Particular requirements. Multifunction…

BS ISO 4942:2016

Steels and irons. Determination of vanadium content. N-BPHA spectrophotometric method