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"Random Access Three" obverse side view in CPM154CM powder metal technology high molybdenum stainless steel blade, vertical and horizontal sheaths in hand-stamped brown basketweave leather shoulder
"Random Access III"

Mercurius Magnum

"Mercurius Magnum" Tactical Art Knife, obverse side view: 440C high chromium stainless tool steel blade, hand-engraved 304 stainless steel bolsters, Australian Snakeskin Jasper gemstone handle, red stingray skin inlaid in hand-carved leather sheath
Mercurius Magnum Tactical Art Knife
  • Size: Length overall: 10.5" (26.7 cm), Blade Length: 5.25" (13.3 cm), Thickness: .190" (4.8 mm)
  • Weight: Knife: 11.4 oz. Sheath: 6.6 oz.
  • Blade: 440C High Chromium Martensitic Stainless Tool Steel, Hardened and Tempered to Rockwell C58, Mirror Polished
  • Bolsters, Fittings: 304 Austenitic Stainless Steel, Hand-engraved
  • Handle: Australian Snakeskin Jasper Gemstone
  • Sheath: Hand-carved Leather inlaid with Stingray skin
  • Knife: A striking knife with bold tanto lines, tough and bright gemstone handle, and an artistic matching sheath: Mercurius Magnum's roots are in my Mercury knife, a tactical knife design made and used by Special Weapons and Tactics team members. The design is a stout tanto blade, in brightly polished hollow ground 440C high chromium martensitic stainless tool steel, thin at the main edge and razor keen. The secondary edge at the point has good piercing geometry, with an aggressive angle and good cross-sectional thickness. The blade spine has a half-length top swage, a significant thumb rise for control, and a clean, blended choil for an accurate edge termination. The hollow grinds are deep and nicely matched at the grind terminations, some of my best. Behind the choil is a good length of quillon to prevent the finger from sliding forward, and the fully tapered tang is completely fileworked in my bold and deep "bat ears" pattern. The handle curvature is comfortable and locks well into the hand, and the weight is balanced at the middle finger so significant mass can be applied at the persuader. Also known as a skull crusher, this non-edged point at the rear bolster is part of the full tang, and is becoming more popular on defensive tactical knives to "persuade" opponents along (submitted by SWAT professionals). The meaty rear bolster has a 5/16" through-tang lanyard hole for security, and a nice quillon to apply hammer force at the persuader. I wanted to handle this knife with something special, so I chose Red Snakeskin Jasper from Western Australia for the gemstone handle material. This stone is hard, tough, and solid, with veins of red metallic hematite and quartz running through and across the layering. The tough jasper is smoothly and brightly polished and bedded to dovetailed bolsters of 304 austenitic stainless steel, a high nickel, high chromium stainless steel that will last indefinitely, and never tarnish. I hand-engraved a scale-like motif reflecting the geometry of the persuader and complimenting the Snakeskin Jasper. This gemstone and stainless beauty feels just right in either traditional or defensive grip style with the thumb laid across the persuader curve.
  • Sheath: The sheath had to be a stunner on this one, so I went for an artistic motif of inlaid Red Stingray Skin in 9-10 oz. leather shoulder, 17 pieces, arranged in a complimentary pattern set in the hand-stitched, black dyed, lacquered and sealed leather. The sheath echoes well the shape and features of the knife at the persuader and the tanto point, and is smooth, rounded at the edges, and nicely fitted to just this knife. The Stingray skin is very hard and tough, actually interlocking bony plates. A difficult piece to execute, but I love how this one works.
  • A beautiful ensemble that packs a visual and tactical punch!

Thanks, P.K.!

Hello, Jay!
Received the knife on Tuesday; it is perfect in every way. I still cannot figure out how you come up with so many different designs that you carve on the edges!


Please click on thumbnail knife photos
"Mercurius Magnum" reverse side view. Note artisitic carved inlays in rear of sheath and belt loop. "Mercurius Magnum" spine edgework, filework detail. Filework is "Bats Ears" and extends fully down the tapered tang. "Mercurius Magnum" tactical art knife inside handle edgework, filework. Note tough rear bolster, tang persuader at butt of handle, dovetailed bolsters "Mercurius Magnum" obverse side handle detail. Australian Snakeskin Jasper is tough, hard gemstone with quartz, chalcedony, and hematite, brightly polished "Mercurius Magnum" tactical art knife reverse side handle detail. Handle angle is comfortable in several grip styles, skull crusher is stout and bold. "Mercurius Magnum"obverse side front bolster detail. Bolsters are zero-care high nickel, high chromium 304 stainless steel and should outlast the blade! "Mercurius Magnum" reverse side front bolster detail. Hand engraving 304 stainless is not for the timid! Note substantial quillon to protect hand from blade, nice grind lines. "Mercurius Magnum" obverse side rear bolster detail. Engraved pattern echoes geometry of pointed persuader (skull crusher). "Mercurius Magnum" reverse side rear bolster detail. Note 5/16" lanyard hole for security, engraving designed around this substantial rear bolster and quillon. "Mercurius Magnum" sheathed view. Sheath is designed around knife to compliment it, artistically using curves and shapes to frame the handle and point. "Mercurius Magnum" sheathwork detail. Red Stingray skin is very hard and tough, actually interlocking bony plates, and is difficult to inlay. "Mercurius Magnum" sheath throat detail. Note thickness of sheath, over 3/4" at throat!

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