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Taper vs Pin Punches: Understanding the Differences and Use

Updated: Mar 5, 2023

Introduction:

When it comes to metalworking, having the right tool for the job is essential. Punches are an important tool in any metalworker's arsenal, but it can be easy to confuse the two types of punches: taper punches and pin punches. In this article, we will take a look at the differences between taper and pin punches, the various uses for each, and the pros and cons of each.


Taper Punches:

Taper punches are characterised by their tapered tip, which gradually gets smaller towards the end. These punches are typically used for aligning holes in metal parts before assembly, marking the centre of a hole for drilling, and removing dowel pins from a part. They can also be used for starting a hole for a screw or bolt and staking or peening a metal part to secure a press fit.


Uses of Taper Punches:

Aligning holes in metal parts before assembly

Marking the centre of a hole for drilling

Removing dowel pins from a part

Starting a hole for a screw or bolt

Staking or peening a metal part to secure a press fit


Pros of Taper Punches:

The tapered tip allows for precise alignment of holes

Can be used to mark the centre of a hole for drilling

Can be used to remove dowel pins with minimal damage to the surrounding area


Cons of Taper Punches:

Not suitable for driving out pins or rivets

Not suitable for harder materials


Pin punches, on the other hand, have a straight, cylindrical tip. They are primarily used for removing pins or rivets from a part, drifting (pushing) a tight fitting part out of a hole, starting a hole in a softer material, marking a centre line on a round object, and setting or adjusting the timing of a mechanical device.


Uses of Pin Punches:

Removing pins or rivets from a part

Drifting (pushing) a tight fitting part out of a hole

Starting a hole in a softer material

Marking a centre line on a round object

Setting or adjusting the timing of a mechanical device


Pros of Pin Punches:

Can be used to remove pins or rivets with minimal damage to the surrounding area

Can be used to drift tight-fitting parts out of a hole

Suitable for harder materials


Cons of Pin Punches:

Not suitable for precise alignment of holes

Not suitable for marking the centre of a hole for drilling


Conclusion:

In conclusion, taper and pin punches are both essential tools for any metalworker, but they have different uses. Taper punches are great for aligning and marking, while pin punches are used for removing pins and rivets and for other specific tasks. Be sure to choose the right punch for the job to ensure the best results.


See Arkham Tools selection for the best mirror electroplated parallel pin punches available that come with a handy metal storage container!

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