DIN 1835-1:2024-03
Cylindrical shanks made of steel for machining tools - Part 1: Dimensions

Standard No.

DIN 1835-1:2024-03

Release Date

2024

Published By

German Institute for Standardization  DE  /  DIN

Latest

DIN 1835-1:2024-03

Introduction

Background of Standard Evolution

DIN 1835-1:2024 is an important update to German tool standardization, replacing the 1999 version of the standard. The main changes include:

• Expanded scope of application to all machining tools (originally limited to milling cutters)
• New Form F structure for minimum quantity lubrication (MQL) system
• Updated size series with diameter of 3-63mm

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Core parameter comparison

Type	Structural features	Diameter range (mm)	Key tolerances
Form A	Smooth axis cylindrical shank	3-63	h8(+2/0)
Form B	With side drive surface	6-63	h6(+0.05/0)
Form D	With tensioning thread	6-32	h8(+2/0)
Form F	90° coolant cone	3-32	h6(+1/0)

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Key Technical Features

1. New MQL interface (Form F)

Three new coolant transmission solutions are added to the standard:

• Central fluid supply (Type A): Single cone seal structure
• Bypass fluid supply (Type B): With cooling channel connection
• Dual cone fluid supply (Type C): Optimized fluid dynamics design

2. Tolerance system optimization

Key mating dimensions adopt ISO 2768-m class general tolerances, including:

• Driving surface width b1 tolerance: h13(+2/0)
• Threaded shank outer diameter da: +0/-0.1mm

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Implementation recommendations

Selection guide

1. High-speed machining: Form B with a side driving surface structure is preferred
2. Heavy cutting: Select Form D thread tensioning structure
3. Minimal lubrication: Must use Form F corresponding to A/B/C variants

Transitional precautions

When used in conjunction with DIN 1835-2:2024, it is necessary to verify:

• Chuck interface size compatibility
• Coolant channel pressure level
• Drive surface contact area ≥70%