Hand Tapping tutorial video

This is a comprehensive hand tapping tutorial brought to you by www.engineeringsupplies.co.uk . By the time you have watched the full video you will have a deeper understanding of the function of a tap, the terminology and a step by step introduction into how to tap a hole by yourself. There is endless terminology that could be discussed on the subject of hand tapping but we only focus on the core areas you might encounter (e.g. there are tens of thread forms in the world but we concentrate on metric, UN and whitworth). The video is split into two sections: The 1st section is an in depth introduction to hand taps and practises and terminology. The 2nd section is a step by step walkthrough on how to use a tap including troubleshooting. If you just want to know how to tap a hole properly you can go directly to this section. 00:00 Introduction Section 1: 00:39 What is a Tap Used for? 01:32 How Does a Hand Tap Work? 02:18 Hand Tap Accessories - Tap wrenches 02:59 The Composition of a Tap 03:47 Chamfer leads - The 3 Styles of tap - 05:07 Taper Taps 05:52 Second Taps 06:57 Bottoming Taps 07:57 Tap Terminology 10:23 Identifying a Thread Size 12:12 Pilot / Tapping Drills 14:58 Tap Types - Carbon & HSS (differences and how they are manufactured) 17:46 Section 2 - How to tap a hole (Practical section) 17:51 Drilling a Pilot Hole 19:06 Lubricants 22:03 Fitting a Tap into a Tap Wrench 22:27 Hole Alignment 23:13 Hole alignment with a Lathe 23:27 Threading a Plain Hole 24:51 What to do if the Tap Becomes Hard to Turn 25:49 Cleaning or Repairing an Existing Thread 26:15 Hole Finishing