Your slide is an essential, tone-creating part of your instrument - not just a means of playing the notes.

The material, surface quality and weight of a slide all have a profound impact on your tone. If any of these are lacking, you'll find yourself compensating - using more pressure, hitting the frets - then compensating again with heavier strings and higher action...

Unique, high-performance materials

Unlike other slides, every Wolfram slide is designed and engineered from the ground up to be a guitar slide. We don't just cut slides from pre-formed metal tube; whether you choose our precision sintered tungsten carbide, marine-grade stainless steel or unique and beautiful aerospace coatings you can be sure that they have been carefully chosen and engineered for ther tone, performance and durability.

Peerless surface quality

Every one of our slides is lovingly polished by hand to a mirror-sheen to achieve the smoothest possible, low-friction playing surface. Rattles, scratches and string noise are a thing of the past, as is string drag. Expect a silky-smooth glide from your Wolfram slide, both across and along the strings.

Weight, comfort and agility

There's no avoiding it - the weight of a slide is a huge influence on the sustain and tone you can achieve from your guitar. Overly-light slides are one of the most common reasons for players needing to raise that action or use heavier strings. All Wolfram slides are engineered with a delicate balance between material choice, size and weight to achieve a great tone from any guitar, whatever the strings, whatever the setup. Our slides are designed to meet the needs of hard-playing professionals, who need a slide to be comfortable for many hours of playing, day after day, and agile enough to tackle any musical style with finesse.

Slide perfection

No other slide in the world is made with the level of care and attention of a Wolfram slide. We are fanatical about quality - if it isn't absolutely perfect, it will never leave our workshop.

Buy now

from £35.99

Made in England

Two innovative original designs...

The Martin Simpson Signature Slide

Concept and design

Martin Simpson's Signature Slide represents his vision of the ultimate guitar slide, executed with absolutely no compromises. Our innovative tapered design balances the slide, throwing the mass towards the fingertip for unprecedented single-note sustain, tone and control. Realised in solid tungsten carbide - twice as dense as steel and nearly as hard as diamond - this heavy 195 gram slide remains compact and agile, uniquely combining the properties of metal and glass: a rock-solid fundamental with blooming, bell-like sustain and a palette of overtones infinitely controllable through technique and playing style.

Mirror-smooth low-friction performance

The surface is hand-lapped to a microscopically-smooth mirror finish for a playing feel completely devoid of string drag and noise. The lightest touch brings out a beautiful note, making this slide eminently suitable for guitars with light strings and low action (Martin does not use a separate guitar or different setup for slide). The precisely radiused and polished ends combine function and aesthetics. As well as enhancing the beauty and feel of the slide, they are a playing surface, making sensitive interaction with the strings possible for techniques such as hammer-ons and pull-offs.

Affordable Artist Series slides

We have distilled the essence of our flagship tungsten carbide slide into the high-peformance, affordable Artist Series Signature Slides. Machined from a solid billet of marine-grade stainless steel to exactly the same design and quality standard, then polished by hand to a smooth, mirror finish, these slides are engineered to extract the maximum possible tone performance from stainless steel. You have the option of our unique tungsten carbide or titanium nitride aerospace coatings, for even lower friction, higher durability and focused tone.

Far from being a poor relation to our tungsten carbide models, the Artist Series slides outperform any other metal slide on the market, approaching the stunning performance of our tungsten carbide slides in a much more affordable, lighter-weight package. Martin himself uses his Artist Series Signature Slide for electric guitar.

"These are literally the finest slides available, anywhere... If you're a slide player, this could change your life."

Martin Simpson

The Martin Simpson Signature Slide is available in our flagship solid tungsten carbide.

The Martin Simpson Artist Series Signature Slide is available in tungsten carbide-coated steel, titanium nitride coated steel and hand-polished marine-grade stainless steel.

Learn more about tungsten carbide

Learn more about Artist Series materials.

"It's perfectly silent when it moves across the strings. It has a finish on it which is smoother than glass, and it's completely unmarkable."

Martin Simpson

The Martin Simpson Artist Series Signature Slide is available in two sizes, medium and small*. The unique tapered interior follows the shape of the finger and makes for a supremely comfortable fit on a wide range of finger sizes.

We recommend the medium size for use on the ring finger and for players who prefer a loose fit on the little finger; we recommend the small size for players who prefer a snug fit on the little finger.

The medium and small size slides are balanced to have exactly the same weight, so you lose nothing in tone between the two sizes.

Medium size

Small size

Length

63.5mm

62mm

Outer diameter

25.4mm

62mm

Inner diameter (base)

21.8mm

62mm

Inner diameter (fingertip)

16.9mm

62mm

* the tungsten carbide Martin Simpson Signature Slide is currently available in the medium size only.

"The considerable mass means that you need little pressure, especially on the top strings, to produce exquisite tone and remarkable sustain."

Ian Anderson
Editor, fRoots

Martin Simpson Signature Slide

Slide model:Wolfram Martin Simpson Signature Slide (2013)
Slide material: Nickel tungsten carbide metal matrix composite
Surface:Hand-lapped mirror finish
Overall length:63.5mm
Outer diameter:25.4mm
Inner diameter:Tapered 21.8mm - 16.9mm
Edge radius:custom, precision compound radius
Mass:195 grams
Accessories: Exclusive 16-page illustrated technique / information booklet
(written by Martin Simpson and David Browne)
Velvet storage pouch
British-made Selvyt™ microfibre cloth
Individually signed certificate of authenticity

Martin Simpson Artist Series Signature Slides

Slide model:Wolfram Martin Simpson Artist Series Signature Slide (2015)
Slide material: Marine-grade 316L stainless steel
Optional aerospace surface coating:
- tungsten carbide / carbon matrix sputtered coating
- titanium nitride CVD coating
Surface:Hand-polished mirror finish
Overall length:63.5mm
Outer diameter:25.4mm (medium) / 24.4mm (small)
Inner diameter:Tapered 21.8mm - 16.9mm (medium)
Tapered 20.3mm - 15.5mm (small)
Edge radius:custom, precision compound radius
Mass:106 grams
Accessories: Exclusive illustrated technique / information leaflet
(written by Martin Simpson and David Browne)
Velvet storage pouch

Martin Simpson demonstrates his tungsten carbide Wolfram Signature Slide.

 

The Michael Messer Signature Slide

Concept and design

Michael Messer is an internationally-renowned blues innovator, using a wide range of slides to devastating effect. The character of a slide is determined by the interplay between density of material, wall thickness, mass and size. In Michael's Signature Slide, our aim was to capture the tonal magic of our unique tungsten carbide material in a medium-weight slide designed to be especially effective on reonator guitars.

The result, arrived at through over a year of R&D, is truly spectacular. This thin (1.3mm wall thickness) slide is incredibly acoustically active, capable of producing a stunning range of tones associated with metal and glass slides, all delicately controllable through playing style and technique. There is always a strong fundamental note, present with the lightest touch, but a halo of overtones, more commonly associated with glass slides, is there to be explored! Due to the use of tungsten carbide - twice as dense as steel and nearly as hard as diamond - this thin slide retains a medium meight of approximately 90 grams for excellent sustain characteristics.

Mirror-smooth low-friction performance

The surface is hand-lapped to a microscopically-smooth mirror finish for a playing feel completely devoid of string drag and noise. Michael comments that the slide feels as though it has been oiled! The edges are precisely radiused and polished, ensuring that the thin-walled slide glides smoothly across the strings with no chance of snagging or catching on the strings.

"The tone and feel is unique. This is a bit like explaining what is so great about a perfect 1928 resonator cone, it is something I can feel when I play."

Michael Messer

We developed the Michael Messer Signature Slide from the ground up to fully exploit the unique acoustic properties of tungsten carbide. It's incredible degree of acoustic activity is the result of a delicate balance of material, wall thickness, mass and surface finish.

We aim to deliver nothing short of perfection, and we found that deviating from the Signature specs - developed over a year of R&D - still made a superb slide but lost the elusive magic of the Michael Messer Signature Slide.

Therefore, the Michael Messer Signature Slide is available in a single size, and only in our flagship nickel tungsten carbide material.

Learn more about tungsten carbide

"I am finding I am able to do things and create sounds that I have never achieved before."

Michael Messer

Michal Messer Signature Slide

Slide model:Wolfram Michael Messer Signature Slide (2014)
Slide material:Nickel tungsten carbide metal matrix composite
Overall length:61mm
Outer diameter:25mm
Inner diameter:22mm
Edge radius:smooth, semi-circular
Mass:90 grams
Accessories: Exclusive illustrated information booklet
(written by Michael Messer and David Browne)
Velvet storage pouch
British-made Selvyt™ microfibre cloth
Individually signed certificate of authenticity

Michael Messer delivers a stunning performance with his Wolfram Signature Slide.

 

...and four stunning materials

Solid tungsten carbide

The ultimate, no-compromise guitar slide material.

Uniquely combines the best properties of metal and glass for stunning performance.

Heavier than lead and twice as dense as steel - for excellent weight and unprecedented sustain in a comfortable, compact and agile slide.

Nearly as hard as diamond - hand-polished to a microscopically smooth finish. Almost zero string noise and friction from a surface that won't mark or scratch.

Learn more about tungsten carbide

Buy now

from £249.99

Tungsten carbide coated

Achieves lower friction for an even silkier feel and lower string noise.

Increases the durability and scratch resistance of the slide, for an even longer-lasting mirror finish and smooth performance.

Focuses the tone towards a rich blooming sustain with a solid but smooth attack.

Stunning lustrous black colour.

Based on our Artist Series precision-machined stainless steel core - for all the properties that make our steel slides so special.

Buy now

£84.99

Titanium nitride coated

Increases the durability and scratch resistance of the slide, for an even longer-lasting mirror finish and smooth performance.

Maintains the low friction for a silky feel and low string noise.

Focuses the tone towards a bell-like sustain with a bright attack.

Stunning rich gold colour.

Based on our Artist Series precision-machined stainless steel core - for all the properties that make our steel slides so special.

Buy now

£69.99

Stainless steel

Distills the essence of our flagship tungsten carbide Signature designs into an affordable, high-performance slide.

Machined from a solid billet of the highest-quality, marine-grade stainless steel. This work-hardens the surface of the slide for much greater hardness and durability.

Our hand-polished mirror-smooth surface is peerless in the metal slide world - for very low string noise and effortless, low friction performance.

Buy now

£35.99

A hallmark liquid tonality that sustains for days. If you're serious about slide, well... we've never played a better one.

It's very heavy, very beautiful and will change your life. It nearly plays itself ... your guitar sounding like a different instrument.

Incredibly pure tone and comfortable fit. Not just a new take on an old theme, but a complete reinvention of the humble bottleneck slide.

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