What are transfer punches?

A transfer punch set is a punch set in an index with a specific outer diameter that is non-tapered and extends the entire length of the punch, except for the tip. It is used to tightly fit the tolerances of an existing hole and when struck precisely transfers the center of that hole to another surface.

What is a taper punch?

Taper Punches-designed for loosening and driving pins. Taper punches can also be used to align existing holes in two or more work pieces prior to bolting or riveting. Centre Punches-used to make a mark on a material where a hole will be drilled. When struck, a small indentation is made in the work piece.

How do you find a blind hole?

For example, take a piece the size of a book mark and fold it evenly in half width-wise. Then, take a drill and drill a hole through both sides so the holes matches perfectly on both pieces. On one piece take a rivet and cut the stem off and push it through the hole. Now you have a locator.

What is a 1/2 in boxing?

In boxing, the “one-two combo” is the name given to the combination consisting of two common punches found in boxing – a jab (thrown with the lead hand) followed by the cross (thrown with the back hand).

How do you harden a center punch?

The punch can be hardened and tempered using the same technique as used for the chisel. The two-heat method is a useful alternative. Heat about 20 mm of the punch, including the point, to just above dull red heat and quench the whole tool in water. Next, clean and polish the point of the punch.

Are automatic center punches any good?

The automatic punch is comfortable in the hand due to it’s larger knob handle and the spring is very strong leaving a nice dimple in wood or metal for your drill bit to find. The head is hardened for long lasting performance.

How are pin punches sized?

Pin punches feature a long head the same diameter as the tip and meant for removing tension or solid pins. Care must be taken when selecting a pin punch. The ideal size for a given project is one where the tip is smaller than the encasing hole yet large enough to make solid contact with the pin to be removed or driven.