Best Coroplast Cutters

A great basic cutter that's good for cutting single coroplast layers with the flutes. It's not intended, however, for cutting across the flutes.

Get a better grip with this ergonomic handle design. Cuts easily along flutes as well as full or partial sheets. Easily makes an inside or outside bend. Can make a box or column by cutting three corners. Makes it easy to cut straight.

9021US CL 18mm Heavy-Duty Utility Knife with 90 degree Cutting Base

Designed for cutting with the flutes, not across flutes. Does not work as well going through double layers.

Best Bang for the Buck

OLFA

This versatile utility knife cuts coroplast as well as a variety of other media, too.

Utility knife cuts coroplast, ceiling tile, corrugate, gator board and foam board. Handle made of high-impact ABS with built-in staple remover. Ratchet-wheel blade lock allows variety of blade positioning. Tool-free blade change. Comfortable to use, versatile.

#1 Thin Card Knife Carbon Black Miniature Hobby Craft Folding Knives

The cutting guide is not terribly useful. Some found the blades were not sharp enough to cut certain materials.

B Belk

This multipurpose knife is thin enough to slip in a wallet, so it's always ready when you need it.

Blade is thinner than 2 credit cards. Measures 2.8-inches when closed. Titanium carbon blade cuts cardboard, paper, plastics, coroplast, foam board, gator board, wood, film and acetate. Ball-chain and hanging hole for convenient neck wear. Recessed finger grooves.

SDI-5421 Snap-off Utility Knife

Good mostly for smaller jobs, not heavy duty use.

SDI Corp

This handy utility knife includes a screw blade-locking mechanism that ensures the blade will not move during use.

Stainless steel blade channel. Solid metal blade casing and finger lock. Intended for cutting shim, coroplast, wire form, weight board, balsa wood and other media. Screw blade-locking mechanism secures blade while cutting. Locking mechanism withstands up to 44 pounds of pressure. Grooved plastic body for comfort. Comes with 12 replacement 18 millimeter blades.

PRO Auto-Lock Stainless-Steel Utility Knife

Locking mechanism gets in the way during light, quick use.

NT Cutter

A knife both righties AND southpaws can use. It's good for making straight cuts in coroplast and other corrugated media, but for angles and curves, consider another cutter.

Rust-resistant stainless steel snap-off blade knife. Robust automatic blade lock. Designed for both right and left-handed use – lefties should just install the blades upside down for reverse use. Lightweight, slim and comfortable to use.