Microtech 227-10 Dirac Delta (M390, Dagger, Stonewashed, Aluminum, Black, OTF) Automatic Pocket Knife

The Microtech Dirac Delta 227-10 takes the distinctive design of the original Dirac and scales it up into a full-size double-action OTF built for enthusiasts who prefer a larger, more substantial knife. This configuration features a 3.75-inch double-edge dagger blade made from premium M390 stainless steel with a stonewash finish, paired with a black anodized aluminum handle. At 9.25 inches overall, the Dirac Delta provides plenty of blade and handle while maintaining the streamlined profile and precision construction expected from Microtech.

One of the defining features of the Dirac Delta is its front-mounted thumb slide. Instead of positioning the actuator along the side of the handle like many traditional OTF designs, Microtech places it on the face of the contoured aluminum chassis for intuitive one-handed deployment and retraction. Jimping and handle contouring provide additional control, while the deep-carry pocket clip and integrated glass breaker complete this American-made OTF. For collectors and everyday carry enthusiasts looking for the Dirac design in a larger format, the 227-10 offers a compelling combination of size, functionality, and classic Microtech styling.

Microtech Dirac Delta 227-10 Key Features

• M390 Blade Steel: Premium stainless steel offering excellent edge retention, corrosion resistance, and durability
• Double-Edge Dagger Blade: Full-size 3.75-inch symmetrical dagger blade with a plain edge
• Stonewash Finish: Rugged blade finish complements the utilitarian styling of the Dirac Delta
• Black Aluminum Handle: Lightweight anodized aluminum chassis combines durability with comfortable handling
• Front-Mounted Thumb Slide: Signature Dirac design positions the actuator on the face of the handle for intuitive operation
• Double-Action OTF: Thumb slide automatically deploys and retracts the blade through the front of the handle
• Contoured Handle: Ergonomic chassis with jimping and contouring provides a secure, controlled grip
• Full-Size Dirac Platform: Larger version of the original Dirac measures 9.25 inches overall with a 5.50-inch handle
• Deep-Carry Pocket Clip: Tip-down clip provides secure, convenient pocket carry
• Integrated Glass Breaker: Microtech's signature glass breaker is incorporated into the end of the handle
• Made in the USA: Manufactured in the United States by Microtech Knives

Specifications

• Brand: Microtech
• Model: Dirac Delta
• Part Number: 227-10
• Blade Material: M390
• Blade Style: Double-Edge Dagger
• Blade Finish: Stonewash
• Blade Grind: Flat
• Edge Type: Plain
• Blade Length: 3.75"
• Cutting Edge: 3.50"
• Blade Width: 0.75"
• Blade Thickness: 0.12"
• Overall Length: 9.25"
• Handle Length: 5.50"
• Handle Width: 1.00"
• Handle Thickness: 0.50"
• Handle Material: Aluminum
• Handle Color: Black
• Weight: 4.55 oz.
• Knife Type: Double-Action OTF Automatic
• Opener: Front-Mounted Thumb Slide
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