Pocket Sai

Designed from the ground up as an implementation of the Okinawan Sai, a defensive melee weapon that would be practical to carry and sheath itself.  The Handle slides to eclipse the blade's  edges and point, and makes an integrated sheath.  It's one-button locking mechanism is designed to engage in the open or closed position, and must me pressed to unlock it from either end.

 This version of  UPK-D1 Pocket Sai is made in HARDENED SPRING STEEL to provide a cost effective version.

Traditional - The original Okinawan Sai is a defensive melee weapon optimized for non-lethal techniques used by Okinawan police to control and subdue, noting that the saki(point) or yoku(prongs) offer pointed tips that would be used when a more lethal need arose.  I chose to shape the monouchi(main blade) of the Pocket Sai with beveled edges that draw to a point at its end giving it a more ominous look and a more effective tip for its compact size. The bevels enhance a more focused contact pressure on soft targets and provide improved piercing with the saki.  In respect to the traditional Sai, the Pocket Sai is pointed without live edges, this provides better resilience to weapon on weapon impact in melee control techniques.  

Fabrication and Finish

Billet Milled- a fabrication process, from SOLID bar/plate material.  The Blade and handle are milled from a solid piece of Spring Steel, this is the strongest way my designs could be made.

BlastedMetal Finish - the raw milled heat treated spring steel blade and handle are blasted with glass beads to create a matte steel finish.  Then a ceramic coating is applied to provide corrosion resistance. Note these are not stainless steel and care to keep them dry will reduce the opportunities for corrosion to begin. 

Material Specifications:

• Blade Milled from Spring Steel
• Heat Treated to 35-45 HRC
• Handle made in Spring Steel 
• Heat Treated to 35-45 HRC
• Custom Hardware(Button and screws) made in 450 Stainless steel
• Heat Treated by Age Hardening to the H900 condition HRC 45
• 301 Stainless Steel Springs
• Cold work Hardened to a Spring Temper

Dimensions

• Extended length: 11.7 inches (297 mm)
• Collapsed length: 7.3 inches (186 mm)
• Weight: 0.5 lb (8 oz.)