letter hole puncher

Capacities vary by model: many handheld and standard desktop 3-hole punchers handle around 10 sheets, some models handle about 12 sheets, and heavy-duty lever punches can handle up to 32 sheets at once.

Common hole diameters include 9/32" and 1/4" (1/4 inch). Some lever models support multiple head sizes—such as 9/32", 11/32", and 13/32"—with replacement heads available.

Materials vary by type: many desktop punchers use metal frames for durability, while handheld or lower-capacity models often use plastic bodies. Thermoplastic rubber (TPR) or rubber is commonly used for grips and bases for comfort and stability.

Many models include built-in chip trays or confetti catchers to collect punched paper scraps. Some advertise easy-clean or easy-glide trays to make disposal quick and keep workspaces tidy.

Ergonomic features include soft or EZ-Squeeze grips on handheld punches and long lever handles on larger desktop models. These designs reduce hand strain and make punching thicker stacks easier.

Adjustment varies by model. Some punchers offer fully adjustable punch heads, adjustable margin depth, and a paper guide for precise alignment; a subset of desktop units lists fine alignment and center-adjustment controls for more exact positioning.