Dyneema Scissors

[Kukri]

I want a pair, and have been looking around for some, but chandlers both on line and off seem to have some interesting ideas of pricing.

 

[colind3782]

I've always had more success with steel scissors

 

[Roberto]

Scissors used by optic fiber technicians, price from £15-20, they are originally made for kevlar/aramids but cut any other high modulus fiber dyneema vectran etc

 

[Kukri]

Scissors used by optic fiber technicians, price from £15-20, they are originally made for kevlar/aramids but cut any other high modulus fiber dyneema vectran etc

Thanks; you’ve just saved me forty quid.

 

[Kukri]

 

[Roberto]

Same as mine, I just saw they have changed the handle plastic cover colour.
The other pair is slightly bigger and as much efficient, it cuts hmpe, thick leather, even thin metal plate (like slicing -empty- beer cans to make lures), it's japanese and it has a "Engineer" label on it; I bought through Amazon at a similar price, for some reason they then stopped selling them, maybe available elsewhere.

 

[gregcope]

These are not bad and are sold by others as Dyneema scissors;

RS PRO 159 mm Carbon Steel Kevlar Scissors | RS Components

Also this thread on cruiserforums;
Shears / scissors for cutting Dyneema - Page 4 - Cruisers & Sailing Forums

seaworthy lass does some excellent digging!

 

[dankilb]

Great thread/tips here. Would never have thought of these. Nice one fellas! ??

 

[ip485]

I use these for various things including the OP's question.

ACME ExtremeEdge V2 Carbo Ti Scissors, 11 inches: Amazon.co.uk: Kitchen & Home

Also very good at cutting carbon fibre and kelar cloth an lay up, up to 1mm which challenges most cutting tools.

Very good scissors and worth the price because the two parts come apart with the key provided which also makes sharpening much easier, not that I have had to sharpen them yet.

 

[Seaworthy Lass]

Hi all
This is my first post on YBW. I thought I would chime in as I have some information to share. After my D16 pair started to become a little blunt following several years of use, I explored the options given anything branded for marine use tends to be overpriced.

The shears available from Premium Ropes (D-Splicer D14, D16, D20 and D26) seem to come from Nusharp (Taiwan). They make a series of kevlar cutters with excellent reviews that are rebranded by several companies. These shears are available from numerous suppliers worldwide at variable prices:
NUSHARP

All the above have blades made of steel with a Rockwell hardness of 60-62 and have one plain and one micro serrated blade. These are key features to look for.

I purchased a pair of the model shown above, which are Nusharp 956 and probably also the D-Splicer D14 model. They are excellent, cutting through 8mm like butter, something my more lightweight D-16 pair struggled with.

As we were in need of a few pairs on board for general use and as I was curious to see what worked, I also purchased a couple of other pairs advertised for optic fibre (kevlar sheathed) use. Both were of lower hardness steel and vaguely adequate if only thin rope was being cut and you didn’t mind sawing through a few times when tapering individual strands or for thicker line. They were nowhere nearly as good as the models with an HRC of 60-62.

There are inferior copies available of the Taiwanese Nusharp models, so either contact Nusharp by email to see if they are the actual manufacturers, or look at the images carefully. The details of the bolt head and exact profile of the blades can be a giveaway in the copies. Also check the hardness of the blades, although this information cannot always be relied on.

SWL

 

[Kukri]

Thank you very much!

Do please stay around!

 

[gregcope]

Ah. @Seaworthy Lass did not know you were not on here.

@Seaworthy Lass does some of the best work i have seen on dyneema/uhmwpe on cruiserforums.

 

[Seaworthy Lass]

Hi Greg
Many thanks for the generous words.
I have been lurking for years. Up to now CF has been my only foray into social media. A fair bit of effort went into researching dyneema scissors late last year so I thought the information was worth sharing more widely.

SWL

 

[Seaworthy Lass]

Hi Kukri
The pair you purchased are the same as mine (Nusharp 956). They are so good I am tempted to buy a second pair .

Nusharp confirmed they are also the suppliers of the RS PRO 5.5 Scissors (RS 487-135) pair that look identical.

SWL

 

[TernVI]

Most of the dyneema work I do is in the small sizes.
I find a scalpel and a cutting board is very effective.

The other thing that works amazingly well is a pair of electronics wire snips, where you've got two blades meeting, rather than scissoring past each other.

 

[lustyd]

forgive my ignorance, does a hot knife not work on dyneema? I never even realised this was a thing! I have no dyneema currently but thinking of getting some

 

[Seaworthy Lass]

forgive my ignorance, does a hot knife not work on dyneema? I never even realised this was a thing! I have no dyneema currently but thinking of getting some

A hot knife will melt dyneema, but it leaves a hard edge which is unsuitable for dyneema work, as it becomes a chafe point.

SWL

 

[Kukri]

Hi Kukri
The pair you purchased are the same as mine (Nusharp 956). They are so good I am tempted to buy a second pair .

Nusharp confirmed they are also the suppliers of the RS PRO 5.5 Scissors (RS 487-135) pair that look identical.

SWL

Thanks. Not wholly beginners’ luck; I have you to thank as Google led me to your posts on Cruisers’ Forum!?

 

[ip485]

I am interested now what hardness the steel is on the pair i recommended earlier. I cant find a reference other than it suggests it is 10x harder than untreated steel.

 

[GHA]

hardly salty seadog but I just use a stanley knife with spare blades, dead cheap and works fine.