Home Front: Impact testing

I wanted to do a bit of a demonstration on the effects of some of the impact tools I have been covering of late, and throughout my reviews.

Here's the lineup:
1)Cybernetic Research Labs Tactical Pen
2)Ti2 Techliner pen
3)RaidOps MF Delta
4)RaidOps TM Joe
5)Sharp Shooter keychain




I asked a group of my hitting and hacking peers and came up with "pumpkin" as as good a target for testing as any.

I wanted a good solid target, which would offer a fleshy impact simulation, not be pulped, but also not shatter on impact. I happened to have a butternut pumpkin handy and it being winter here, wanted some with dinner.

For good repeatability of the tests, I chose a downwards punch from about chest height for each strike. I didn't put any hip into the strike, nor follow through, just a static jab type punch. For the pen type tools I used a downward stab, from the heel of the fist. I braced the pumpkin with a pencil, just to stop it rolling, and turned it for each strike to hit a fresh surface 

The CRL. Tactical Pen sunk in only to the depth of the tool tip, stopping at the body of the pen. It collected a lot of material on the way out. In fact, my pen still has pumpkin wedged into the fluting.

The Ti2 TechLiner pen sunk in further than I would have expected for a blunt tool, but it's sleek lining offered little resistance. It also cored some pumpkin, but not nearly as aggressively as the CRL pen.

The MF -Delta had a fairly shallow penetration, with the flat head giving a regular indentation and the bottle opener head giving a shallower, but jagged indentation. I wasn't surprised that the Delta didn't dig in more, but it did feel very comfortable in the hand. 

The TM -Joe dug in a surprising amount, all the way to the "jaw" of the tool, which upon reflection, shouldn't have been surprising, given the chisel-wedge shape of the teeth of this tool.  

The SharpShooter was an interesting test. I did two, one from the key-end as a flail. Again with my hand held around chest height, and the second as a pen-strike as with the CRL and Ti2 pens. 

The flail end of the SharpShooter left a very shallow, but messy set of intends, one for each key, as well as the shackle, and even one from the ring (which I accidentally had left loose, rather than around my finger as per the instructions).






The pen end of the SharpShooter was fairly disappointing, but not unexpected, mostly because of the combination of the rubber stopper and the paracord knot. It left a bit of a bruise on the skin, but no discernible penetration. 

I then started cutting up my pumpkin, and got to see the trauma dished out by each tool.

The CRT and Ti2 pens showed their depth of penetration and the tissue trauma really nicely.

The MF-Delta's shallow penetration belayed the broad spread of trauma beneath the skin, which was quite pervasive all around the penetration, to a respectable depth

The TM-Joe offered a comparable amount of trauma, but deeper and wider. This is definitely the nastier of the two tools to strike with. I shudder to consider the combined effects of skin and flesh and bone when struck by this titanium tool.


The Sharp Shooter didn't display any significant penetration, nor trauma beneath the rind of the pumpkin (which was delicious, I might add).

All in all I'd say that the RaidOps TM-Joe was the most devastating tool to make a mess of a pumpkin with, and perhaps I will move on to some meat-tests with it, like I did with the SuperHammer and KA-BAR knives ...

Review: RaidOps - TM-Joe & MF-Delta

Check out these bad boys! I got in touch with a long time source of Wish-Lust for me from RaidOps out of Korea.

They make a wide range of titanium impact tools, knives and hard-wearing and multi-function pieces of wearable art. The two items that I got are the triangular MF-Delta and the evil platypus skull shaped TM-Joe.

Both are made of grade 5 titanium, and are double heat-treated to over 500oC to achieve HRC 50-52. They are finished in a dark-brown patina.

The TM-Joe is 84mm (3.31") x 58mm (2.2") x 5mm (0.2"), weighs in at 42g (1.5oz) and features 11mm (5/16") nut holes in the "ears" and nose" with a smaller, 9mm nut hole adjacent to the larger one in the nose. The very tip of the tool is shaped to act as a pry-bar, with nail-pull at the center. The pry-bar is not chisel edged, so there is no fear of cutting things accidentally, but will limit that "first bite" width needed to get a pry happening.

As well as the mean looking eye-holes, there is a lanyard hole in the middle of the top of the piece which mates with the RaidOps Quick Release attachment clip, a small piece of polycarbonate plastic with two rounded pinching surfaces that fill the lanyard hole, and hold with sufficient force to prevent any accidental dislodging.

A quick forceful tug and the tool comes away in the hand, ready for action. Both tools feature attachment points for the Quick Release mount, and come with a standard ball-and link chain.

The MF-Delta is made from the same Grade 5 titanium alloy with it's dark brown finish.It measures  61mm (2.4") x 70mm (2.76") x 5mm (0.2"), and weighs 31g (1.09oz), 31g (1.09oz). It features two hex driver cutouts, one of which also doubles as a bottle opener. It also features a single 7mm bolt hole, but has four lanyard holes in its middle, and another at one tip.

The MF-Delta, being shorter and more evenly dimensioned is a little less obtrusive to the eye, where as the TM-Joe is more stylized to look like a piece of art. Neither are bladed, with all the edges being rounded if not fully milled. Even compared to the NukoTool Skully or the Nuko ACDT they look more like jewelry or abstract art than an impact weapon.
When snapped off their neck-lanyards, both the MF-Delta and TM-Joe fit both snugly and safely in a palmed fist, those rounded edges don't dig, nick or snag.

The rounded "necks" of both tools quickly slip around the inter digital gaps between fingers, giving you a really secure grip, and bracing against the palm to let you drive them with considerable force into whatever you felt the need to. I put some pretty effortless divots into furniture around the house, with a very satisfying sound. I found that the grips were probably the smoothest and best fitting for my hands that I've encountered for this kind of tool. Great thickness and width of contact points and sufficient aperture to be held naturally.

Worn around the neck, or attached to a keychain, these innocuous tools are both elegant to look at, have a beautiful finish and even a "chime" when struck, I have been really pleased to add them to my collection, and will probably keep one on me whenever I travel, not to mention visit anywhere that regular defensive items might be frowned on.












Be sure to check with local regulations and legislation when it comes to this kind of item. It would be an easy enough thing to confirm, rather than falling foul of LEO's just doing their job. Being booked, fined or incarcerated won't help your ability to respond to an emergency, so be smart.


But be smart with gorgeous looking items that work well and are robust, like the RaidOps tools!