Course introduction

Machining of holes

Types of holes

Required dimension
Hole positional accuracy
Concentricity
Roundness
Surface roughness
Dimensional tolerance

Drilling forces

Parts, properties and functions

Classification

Drill types

Special drills

Machines

Tool holders

Coolant

Purpose and effect

Regrinding

Selecting a drill

Formulas

Test

Help

Basic Drilling

Help

The main menu
The sub menu
The pages
The test

Required dimensions

Below is a very simple example, 25 holes with a 10mm diameter, with a depth of 24mm.

25 – ø 10 depth 24

Number of holes

ø 10

24

Glossary

A - B
C - D
E - G
H - I
J- O
P - R
S - T
U - Y