Hole Punch

Definition and Overview

A hole punch is a tool that punches out material with a cutting edge at the tip to make round holes. In apparel accessory attachment, it is used for pilot holes for eyelets, cap and close posts, press fasteners, and similar items. Keeping the hole position and diameter stable leads to a clean finish.

In general, a punch is used by pressing its cutting edge against the material. A striking method is used for materials with thickness or hardness, such as leather, belts, synthetic leather, and interlinings, but with thin textiles or stretch fabrics, care is needed to avoid hole distortion and fraying.

How to Use

Before processing, mark the center of the hole accurately with tailor’s chalk or similar. Place a special rubber mat or cutting mat under the material so the cutting edge is less likely to be damaged and punching is easier. If you punch directly on a hard bench or metal plate, the cutting edge may chip or dull.

Set the punch blade perpendicular to the mark and punch while holding the material so it does not shift. When attaching eyelets or cap and close posts, place the hardware temporarily after punching, confirm that the shaft of the hardware passes through smoothly, then secure it with a setting tool.

• If the hole diameter is too large, the hardware is more likely to wobble or come out.
• If the hole diameter is too small, excessive force is applied to the hardware or material, which can cause cracking or deformation.
• Before actual production, perform test punches on the same material or on offcuts.

Types and Selection

Hole punches include replaceable-blade types that use interchangeable single-diameter blades, rotary types with multiple diameters, and screw types that cut by turning a screw. Choose the type that suits the required hole diameter, processing volume, material thickness, and work location.

For eyelets and cap and close posts, confirm the hole diameter suited to the shaft diameter of the hardware used and the attachment specification. For leather and thick synthetic leather, a durable striking type is often used, while a screw type is an option when you want quiet processing at a desk.

Rotary hole punching tools are characterized by the ability to switch between multiple sizes. However, they may not punch through thick or hard materials sufficiently. Hole diameter accuracy, whether the blade can be replaced, and ease of grip are also points to check when selecting one.

Care and Safety Notes

After use, remove any punched waste or fiber debris remaining inside the blade and store it away from moisture. If the cutting edge becomes dull, the hole edge is more likely to fray and more force is required. If reduced sharpness or chipping is observed, consider replacing the blade or having it professionally maintained.

During work, it is important not to place your fingers near the cutting edge or striking point. Do not hold the material down by hand; fix it with a jig if necessary. When using a hammer, work on a stable bench and confirm that there are no people or fragile items nearby.

Differences from Similar Terms

An awl is a pointed tool used to mark sewing holes or spread out textile. It differs from a hole punch, which cuts material out in a round shape, in how the hole is made and in its use. In fabrics that fray easily, the hole may be reinforced around the opening with an eyelet or similar hardware, not just punched open.

A setting tool is a tool used to attach hardware such as eyelets, cap and close posts, and hooks. A hole punch is mainly a tool for making pilot holes for hardware to pass through, while the attachment process itself usually uses a dedicated setting tool or hand press.

Frequently Asked Questions