LDK Component: Covert Ceramic Razor Blade & Micro FireSteel


The Ceramic Razor Blade (CRB) ZrO2 (Zirconia) was designed during the cold war as a low profile, non-metallic covert operations tactical tool offering excellent concealment and portability. To date there has been significant changes in the evolution of this tool. The blade is extremely sharp and wear resistant.

Ceramic blades are as hard as diamonds. This makes them sharp as well and are much harder and sharper then anything steel has to offer. They stay sharp ten times longer than steel blades and depending upon what you are cutting they will last up to 40 times as long.

  • Colour: Black.
  • Size: 30mm x 10mm
  • Thickness: 0.7mm
  • Weight: 0.8g

The CRB makes for an excellent striker for the Micro FireSteel and other ferrocerium-based fire starters; use the top edge (not blade) to strike the firesteel.

Tip: Drawing the firesteel back whilst holding the CRB steady allows for the shower of sparks to be delivered where you need them.

LDK Component: Compass


Grade AA Liquid-Filled.

Highly luminous (expose to white/UV light source prior to use)
Working temperature range of -20 degrees F to 120 degrees F
Water resistant to 100 ft (30 m) 14mm diameter x 7.1 mm height

LDK Component: APEK


This is a covert necklace designed for use as a friction saw to cut through non-metallic restraints when restrained to the front.

There is no preparation required (knots to tie etc.) so it can be deployed in seconds…

Simply feed one end of the cord through the restraint, place the foot loops over the toe part of your shoes or if barefoot between the big toe and increase the tension of the cord so it positions itself on the lower part of the restraint to avoid friction injuries. Now move your feet in a slow pedal motion and gradually build up speed. The heat from the friction will burn through the restraint. The cutting knots are for heat resistant natural ropes that are impregnated with oil.

This tool can also be used to unlock some Darby Handcuffs (male version with screw thread).

The TEN also features the Micro Striker Bead Tungsten Carbide (MSB-TC) for breaking tempered glass windows (car side windows). Concealed inside the plastic breakaway connector the MSB-TC is hidden until you require it. To deploy you pull on the cord either side of the breakaway connector to disconnect. The MSB-TC is seated inside the female part. Simply pull the plastic female part down the cord and past the first cutting knot whilst holding onto the MSB-TC. Then wrap the cord around your hand and leave about 12 inches of cord hanging free with the MSB-TC on the end. Swing the MSB-TC towards the glass – very little force is required as the mineral hardness of the MSD (9.5 MOHS) is greater than glass (will punch a hole in a glass bottle!). You can use this to escape from a car or rescue persons from a car (the friction saw will cut seat-belts).

The silicone retainers are fitted as standard and can be used to carry escape various tools. The necklace when fully loaded with escape tools is known as the Advanced Personal Escape kit (APEK).

LDK Component: AHK3

tmp_7871-20170212_1337121074411018Some handcuffs feature anti/counter shim features in their design or they can be double locked (also known as transport lock); this can make shimming difficult so using a key is often the quickest and easiest method to remove handcuffs.

A universal handcuff may work on some handcuffs but if there are anti/counter shim features present it is likely that a special key will also be required.

Also known as the Delta Key the AHK3 is the latest generation of handcuff key designed to counter the security features found on high security handcuffs such as a key blocking blade, large key-way pin and deep set key-way. For some handcuffs it will work just like a key and on others you have to alter the depth and angle whilst feeling for working parts.

Handcuffs only require slight pressure with a key to push down the pawl and disengage the ratchet to unlock.

When under stress it is easy to apply excess torque when turning a key. The AHK3 is mild steel with a phosphate coating and unlike the polymer handcuff keys it will bend and not break. If excess torque is continually applied the key flags on the AHK3 will eventually break away so the remainder of the key can be easily removed. This maintains a clear key-way to allow for another key to be used. When polymer handcuff keys break they tend to block the key-way and they are difficult to remove.

With training it is possible to make field expedient escape tools using some of the AHK3 features.