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Boker Coffin Ultem Heinnie Exclusive Folding Knife 18

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£129.95

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Description

Returning exclusively to Heinnie, the Boker Coffin Ultem, designed by Chuck Gedraitis, brings back a Boker favourite with a tonne of character and properly modern materials.

The coffin-shaped handle scales are made from semi-transparent Ultem, a high-performance polyetherimide amorphous thermoplastic known for its exceptional heat resistance, high strength, rigidity, and chemical resistance. The crisp pyramid texture adds grip without feeling fussy. It sits comfortably in the hand and looks unlike anything else in your pocket. The drop-point blade is MagnaCut, heat treated to around 61–62 HRC, chosen for its excellent edge retention, corrosion resistance and easy maintenance. A decorative ricasso adds a touch of refinement without getting in the way of work.

This is a slip-joint with a 90-degree stop, opening via a traditional nail nick. A deep-carry, tip-up stainless steel clip keeps things discreet.

Specification

SKU
112947SOI
Age Restriction:
18+
Blade Material:
MagnaCut Stainless Steel
Blade Length (cm)
8.0
Blade Thickness (cm)
0.24
Closed Length (cm)
10.5
Overall Length (cm)
18.5
Edge Type:
Plain
Blade Shape:
Spear Point
Blade Finish:
Satin
Grind:
Flat
Handle Material:
Ultem
Lock Type:
Non-Locking
One Handed Opening:
No
Pocket Clip:
Yes
Product Weight (g)
55
fbt-product:
/spyderco-tri-angle-sharpmaker-knife-sharpener/
fbt-product:
/boker-microfiber-cloth
Cutting Edge:
7.6
UK Friendly Carry:
Yes

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Reviews

  • 4

    BOKER COFFIN ULTEM

    Posted by Shaun Fox on 30th Jan 2026

    Overall the knife looks and feels good, build quality is to a good standard. The Ultem scales are pleasant and the pyramid pattern on them is grippy. The Magnacut is a nice blade material but unfortunately it was reasonably blunt when it arrived, easy to sharpen though. It opens and closes smoothly although the nail nick is close to the scales and if you have weak nails or podgy fingers, like me, this might be an issue. My thumb nail is already hurting. Usual great service from HH but now there seems to be a slight problem with delivery, I used to have them delivered to my local shop but recently that is not an option I’m getting offered and now have to drive a 12 miles round trip to the nearest collection point, three villages away. I knocked a star off for the blunt blade and poorly paw due to lack of blade grab.