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Centre Punch: Difference between revisions

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<div class="buyers-guide">
{{Centre Punch Buyers Guide}}
=====DT Online Buyers' Guide=====
</div>
* All punches shown have a good knurled grip.
* Those with a square head are less likely to roll off the bench.
{|
|-
| <dtamazon product="B0001IW734" type="image">Stanley Centre Punch 0 58 120</dtamazon>
| <dtamazon product="B0001KA22A" type="image">Draper 84456 4mmx100mm Centre Punch</dtamazon>
| <dtamazon product="B0006J4QP0" type="image">Starrett 117D Centre Punch with Round Shank</dtamazon>
| <dtamazon product="B0049ESVI6" type="image">Spear & Jackson 4mm x 100mm (4inch) Centre Punch</dtamazon>
| <dtamazon product="B00TYFGVB4" type="image">RDGTOOLS Engineers Bell Punch "Centre find every time"</dtamazon>
|-
| <dtamazon product="B0001IW734" type="text">Stanley Centre Punch 0 58 120</dtamazon>
| <dtamazon product="B0001KA22A" type="text">Draper 84456 4mmx100mm Centre Punch</dtamazon>
| <dtamazon product="B0006J4QP0" type="text">Starrett 117D Centre Punch with Round Shank</dtamazon>
| <dtamazon product="B0049ESVI6" type="text">Spear & Jackson 4mm x 100mm (4inch) Centre Punch</dtamazon>
| <dtamazon product="B00TYFGVB4" type="text">RDGTOOLS Engineers Bell Punch "Centre find every time"</dtamazon>
|}


[[Category:Punches]]
[[Category:Punches]]

Revision as of 12:23, 15 May 2016

CentrePunch.png
Description

Centre Punches are ground to a strong point with an included angle of 90 degrees (in a similar manner to a Scriber).

Features and Uses

To stop a drill bit skidding about a metal surface, these are used to make a small indentation to locate the drill centre.

Note: Hold the punch to an angle to position on centre then raise to the vertical and strike it sharply with a hammer - but only once - striking several times may cause the punch to bounce around.

DT Online Buyers' Guide
  • The lowest cost option is to use a hand-held punch with a hammer but a wide range of automatic punches are available - both Dot Punches and Centre Punches.
  • In general, Dot Punches have a sharper point (i.e. 60° instead of 90°) and need only the lower ranges of impact force (e.g. 20N to 50N).
  • Automatic punches are simply pushed down against the work-piece and do not need to be struck - indeed, should NOT be struck with a hammer.
Centre Punch Automatic Centre Punch Bell Centre Punch Nail Punch Pin Punch Hollow Punch Set Number and Letter Punch Set
Centre Punch Automatic Centre Punch Bell Centre Punch Nail Punch Pin Punch Hollow Punch Set Number and Letter Punch Set
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