Jonathan Harrington / Veteran-owned maker

Custom kniveshand-drawnhandcrafted& built for purpose

Name: Multi Tool
Price: 79 USD
Availability: PreOrder

Small-run knives drawn, shaped, ground, and finished by Jonathan Harrington.

View the blades

Crusader knife shown from a three-quarter angle

Scroll to the work

Jonathan Harrington standing beside a large fire at night — 01 / 06

01 / Founder & maker

Jonathan Harrington.

Jonathan designs every Knucklehead Labs knife around one discipline: every curve, proportion, and structural feature must have a functional reason.

His path began with knives in childhood, continued through military service and advanced tactical training, and moved from collecting into making when he could not find the knife he wanted. Today he approaches steel like sculpture—balancing a strong visual form with purpose in the hand.

Made with intent.Built by a person.Ready to be used.

02 / Jonathan Harrington’s philosophy

Every curve earns its place.

Jonathan approaches knife making as sculpture in steel. The proportions should please the eye, but every sweep, angle, belly, and curve must also have a functional reason.

Study the knife. Hold it. Use it. The decisions hidden inside the design begin to reveal themselves.

After medical retirement from the Navy, making knives gave Jonathan an anchor. It became a place for creativity, discipline, faith, and connection. Knucklehead Labs grew from that foundation: purposeful objects made through purposeful work.

Sculpt.Shape steel with proportion and intent.
Resolve.Give every line a functional reason.
Anchor.Build with discipline, faith, and purpose.

03 / The collection

Three knives.
One multi-tool.

Each Jonathan Harrington design gets its own full-scale scene: the original engineering drawing, finished product, exact recorded dimensions, story, verified USD price, and purchase controls. Orders ship only within the United States. Review the Shipping & Returns Policy before purchasing.

Crusader knife held in hand to show scale — 01 / 10

01 / Knife

Crusader

The eight-inch prototype at the center of the line.

Jonathan Harrington first developed the Crusader with Rich Graham in 2005. Now in its fourth major iteration, the design is built around hooking, control, deep draw cuts, torque, leverage, and hard-use performance—not ornament without purpose.

Overall: 8″
Blade: 4″
Steel: .187″ MagnaCut
Weight: Approx. 8.8 oz

Field Grade$597 USD

I certify that I am at least 18 years old, legally permitted to purchase and receive this product in my jurisdiction, and agree to the Terms of Service.

In stock: 35. United States shipping only via USPS Ground Advantage: $19.95. Taxes are calculated at checkout where required. Premier and Signature grades are not available yet.

Scalpel prototype displayed over Jonathan Harrington’s original drawing — 01 / 04

02 / Knife

Scalpel

A seven-and-one-eighth-inch study with a compact blade.

The Scalpel is the compact everyday-carry companion to the Crusader, designed for precise field work and general daily use in either a forward or reverse grip. Its updated profile carries the Crusader’s sweeping line, curved architecture, and pronounced belly.

Overall: 7⅛″
Blade: 3⅛″
Thickness: 3.3 mm / .1545″

Field Grade$247 USD

I certify that I am at least 18 years old, legally permitted to purchase and receive this product in my jurisdiction, and agree to the Terms of Service.

Available for preorder. Limited to 30 backorders per product, with estimated delivery in 3 to 6 weeks. Cancel any time before shipment for a full refund. United States shipping only via USPS Ground Advantage: $14.95. Taxes are calculated at checkout where required. Premier and Signature grades are not available yet.

Mini Crusader prototype held over Jonathan Harrington’s original knife drawings — 01 / 05

03 / Knife

Mini Crusader

A compact three-finger member of the Crusader family.

Jonathan Harrington designed the Mini Crusader as a compact three-finger counterpart to the full-size Crusader. Its form is intended for close control and simple utility work, carrying the Crusader identity into a smaller, easier-to-carry knife.

Format: Three-finger
Final dimensions: Pending

Field Grade$297 USD

I certify that I am at least 18 years old, legally permitted to purchase and receive this product in my jurisdiction, and agree to the Terms of Service.

Knucklehead Labs Multi Tool displayed over Jonathan Harrington’s original drawings — 01 / 04

04 / Studio tool

Multi Tool

Formerly called the Knuckle Head.

Jonathan Harrington’s Multi Tool is a composite grip-assist device that distributes pressure across the fingers when pulling rope, wire, sharp-edged loads, and other difficult materials. Its original Knuckle Head form also became the Knucklehead Labs brand mark.

Width: 5¾″
Height: 2¾″
Carbon fiber: Approx. .1755″

Field Grade$79 USD

I certify that I am at least 18 years old, legally permitted to purchase and receive this product in my jurisdiction, and agree to the Terms of Service.

Available for preorder. Limited to 30 backorders per product, with estimated delivery in 3 to 6 weeks. Cancel any time before shipment for a full refund. United States shipping only via USPS Ground Advantage: $8.95. Taxes are calculated at checkout where required. Premier and Signature grades are not available yet.

Questions about a blade?

Talk to Jonathan.

Ask Jonathan Harrington about fit, care, shipping, custom work, or the next available batch.

Email directly: jonathanharrington1976@gmail.com

Custom kniveshand-drawnhandcrafted& built for purpose

Jonathan Harrington.

Every curve earns its place.

Three knives.One multi-tool.

Crusader

Scalpel

Mini Crusader

Multi Tool

Talk to Jonathan.

Three knives.
One multi-tool.