The Microtech 227-1BL Blue Dirac Delta is patterned after the Dirac model, Microtech’s first OTF model with the firing slide/button on the face of the handle instead of the spine of the handle. The Dirac Delta holds the same ergonomic chassis, innovative internal mechanism, and glass breaker, but in a more robust size with an overall length of 9.4 inches. The 3.75″ double edge dagger blade is Bohler M390 or Carpenter CTS-204P steel with a black finish. The contoured handle is blue anodized 6061-T6 aluminum with machined traction grooves for a secure grip, and incorporates a glass breaker at the end of the handle. The Dirac Delta is fully ambidextrous, perfect for right or left-handed users. A hard hitting double action OTF, the Dirac Delta is meant for everyday carry.