JIS B 4117-1991 PDF

Full title and description

St JIS B 4117-1991 — Hardmetal (carbide) parallel shank stub drills. This Japanese Industrial Standard (JIS) specifies the designation, dimensions, tolerances and basic technical requirements for solid hardmetal (carbide) straight-shank stub drills (twist-flute type), covering the typical nominal diameter range used in machining.

Abstract

This document (JIS B 4117:1991) defines geometry, nominal sizes and tolerances, shank and cutting-end features, marking and related technical requirements for hardmetal parallel-shank stub drills. It was issued as the 1991 JIS edition and later revised by a 1998 edition; the standard is primarily intended to ensure interchangeability and consistent quality of solid carbide stub drills used in manufacturing.

General information

• Status: Superseded / replaced by a later edition (JIS B 4117:1998 and subsequent revisions/amendments).
• Publication date: 1 August 1991 (original JIS B 4117:1991 publication).
• Publisher: Japanese Standards Association (JSA) / published under the JIS system.
• ICS / categories: Manufacturing engineering — Cutting tools; typically classified under ICS for cutting tools (drills, countersinks, reamers).
• Edition / version: 1991 original edition (reference designation JIS B 4117:1991). Superseded by JIS B 4117:1998 (with later confirmations/amendments).
• Number of pages: Approximately 12 pages (typical for this JIS technical specification).

Scope

The standard applies to solid hardmetal (carbide) straight-shank stub drills — specifying nominal diameter ranges, flute and point geometry, shank dimensions, tolerances, and marking/identification. It is aimed at standardizing form, fit and basic performance-related dimensions for stub-length carbide drills commonly used in precision machining (typical nominal diameter range noted in related JIS editions: about 1.0 mm to 20.0 mm).

Key topics and requirements

• Designation and marking conventions for hardmetal stub drills (how drills are identified and specified).
• Nominal diameters, tolerances and nominal length (stub-length) dimensions for parallel shank drills.
• Shank diameter tolerances and parallelism/fit requirements for tool holders and chucks.
• Basic cutting-end geometry and flute form (twist flutes, point configuration) relevant to interchangeability and performance.
• Materials and references to hardmetal (carbide) materials and related JIS material standards.
• Inspection and acceptance criteria for dimensional checks and marking.

Typical use and users

Machine-tool manufacturers, cutting-tool producers, tooling procurement specialists, tool-room engineers and quality/inspection personnel use this JIS to specify, purchase and verify solid carbide stub drills for production and precision drilling operations. The standard helps suppliers and users ensure dimensional interchangeability and baseline quality.

Related standards

Related JIS documents include material and carbide-related standards (for example JIS standards covering hardmetal/cemented carbide grades and designation) and other JIS B series standards for cutting tools and drill types. Later editions of the same designation (JIS B 4117:1998 and its amendments/reaffirmations) supersede the 1991 text.

Keywords

JIS B 4117, hardmetal, carbide, stub drill, parallel shank, straight shank, twist drill, drill dimensions, drill tolerances, cutting tools, JIS, Japanese Industrial Standard.

FAQ

Q: What is this standard?

A: JIS B 4117:1991 is the Japanese Industrial Standard that defined requirements for hardmetal (carbide) parallel-shank stub drills (designation, dimensions, tolerances and related technical requirements).

Q: What does it cover?

A: It covers geometry, nominal sizes and tolerances, shank and cutting-end features, marking and inspection basics for solid carbide stub drills (typical nominal diameter range commonly referenced is about 1.0–20.0 mm in related JIS editions).

Q: Who typically uses it?

A: Manufacturers of carbide drills, tooling engineers, procurement and quality/inspection teams in machining and manufacturing industries use the standard to specify and verify stub drills.

Q: Is it current or superseded?

A: Superseded — the 1991 edition was replaced by a later JIS B 4117 edition in 1998 (and that 1998 edition has later confirmations/amendments). Users should reference the most recent JIS B 4117 edition for current requirements.

Q: Is it part of a series?

A: Yes — it is part of the JIS B series (mechanical engineering / cutting-tool related standards) and sits within the ICS classification for cutting tools (drills, countersinks, reamers). Related JIS documents include JIS items dealing with hardmetal materials and other cutting-tool specifications.

Q: What are the key keywords?

A: Hardmetal; carbide; parallel shank; stub drill; straight shank; drill tolerances; drill dimensions; JIS B 4117; cutting tools.