D4-SS Hardened 440A Stainless Blade

available as an UPGRADE KIT

This can be used to UPGRADE or replace a D-Series Blade, notably converting a Red Polymer or Black Al Blade on any Hybrid to the Toughest Blade Available.

Compatible with:

UPK-D1, D2, and D4

Handle Material Comparison (Tensile Strength)

• 440A Stainless Steel 220+ ksi 
• Black 7075-T6 Aluminum 70 ksi
• Red 50% Glass-filled Nylon 9 ksi

IMPORTANT READ! 

• Requires Torx T20 Driver to remove screws (Not Included)
• There are 2 stainless springs located under/inside the Button, maintain pressure on button when loosening the Lock screw,  recommend  opening slowly.

• Upgrade requires the use of Loctite 243 in all 3 instances of hardware screws and is included

What's Included

Blade(Only) Kit (uses existing Red Button and Hardware)

• Hardened 440A Stainless Steel Blade
• Loctite 243 0.5ml

SS Button Kit (Max Duty)

• Hardened 450 Stainless Steel Button and is the strongest Button
• Hardened 440A Stainless Steel Blade
• Custom Hardened Stainless Steel lock screw
• Custom Hardened Stainless Steel Shoulder bolts x2
• Loctite 243 0.5ml