SK5 Utility Auto-Knife
Frequently Bought Together
Infinity Knives is excited to introduce to you our newly engineered and designed OTF (Out-the-Front) utility razorblade knife with Carbon-fiber insert. This type of utility knife is characterized by its unique opening mechanism, where the blade deploys and retracts out of the front of the handle by activating the switch. It is a versatile and innovative cutting tool designed fora wide range of tasks.
This OTF utility knife is constructed out of 6061-T6 billet aluminum. All interior parts are 100% CNC machined for a precision fit and operation. The blades are interchangeable by simply pushing the spring loaded blade lock sideways on the designated arrow on the carrier to remove and install standard box utility blades. The clip is designed for right hand carry.
OTF Utility Knife Specifications:
- Standard Refillable Utility Blades
- 3.375 inch Anodized Aluminum Handle
- 5.125 inches in total length with blade
- Designed for Right Hand Carry
- Dual Action OTF
- 3.1 ounces
USA ORDERS
Processing time:1-5 business day
Estimated delivery:5-14 business day(US)
OTHER COUNTRIES
Processing time:3-5 business day
Estimated delivery:10-25 business days(Other countries)
Every Country has different customs and your item may be held up for a while.

Katanas are considered knives and governed as such by state laws, so it is perfectly legal. In the United States, you must be 18 years old or have clear parental permission before owning a Katana.
Whether or not you can carry a katana outdoors depends on the state you live in, and we recommend that you check your state's laws for yourself. In general, it is forbidden to carry the sword openly in public, and it must be in a special bag or secure case.
Our Katanas are forged traditionally by craftsmen. The polishing is also done by a master so that the blade is sharp, and you can perform Tameshigiri cutting. We also offer a razor sharpening option where our master polisher will spend a few extra hours on your sword so that it cuts like a razor.
We deliver worldwide. However, we invite you to check in advance the conditions of purchase and import of weapons in your country. We cannot check the regulations of each country at every moment and modify our countries served according to that.
All our Katanas are full tang. We forge the swords by hand and the blade continues into the handle in order to provide better strength and resistance during practice, but also to respect the Japanese know-how.
Concerning the delays: It takes 7 to 21 days in general. It depends on the complexity of the craft.