The CRKT Attaboy 2.73-inch assisted opening folding knife (CRKT part no. 5410) incorporates designer Flavio Ikoma’s eponymous IKBS ball bearing pivot system alongside Ken Onion’s Assisted Opening, letting it glide open quickly and smoothly. Columbia River Knife & Tool built the drop point blade from D2 steel, while Ikoma’s Deadbolt mechanism holds it safely in place once deployed. Despite its small proportions, the Attaboy offers a strong and secure grip that feels natural in hand, with a hybrid front flipper that keeps the blade’s entire cutting edge available and a choil that lets you choke up for maximum control.

Key Specifications

• The drop point blade measures 2.73 inches, finished in stonewash.
• Blade steel is D2, chosen for excellent edge retention.
• Assisted Opening paired with an IKBS ball bearing pivot gives fast, smooth deployment.
• The Deadbolt mechanism holds the blade safely in place once open.
• A hybrid front flipper keeps the full cutting edge available for use.
• The glass-reinforced nylon handle keeps the knife featherweight and closes under 4 inches.

Frequently Asked Questions

What is the Attaboy’s locking mechanism? Deadbolt, an Ikoma innovation that holds the blade safely in place once deployed.

How is the blade opened? With a hybrid front flipper, assisted by Ken Onion’s Assisted Opening and an IKBS ball bearing pivot.

Buy the CRKT Attaboy 2.73-Inch Assisted Opening Folding Knife

Small, secure, and fast to deploy, the Attaboy is a featherweight everyday-carry folder built by two respected knife designers. Order it from CRKT‘s pocket knife lineup, and our Lubbock, Texas team will ship it out quickly.