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DMT Diamond Sharpening Tools

DMT (Diamond Machining Technology) produces industry leading diamond sharpening stones and files for knives, chisels and planer blades. Their monocrystalline diamond surfaces cut quickly and stay flat, giving you razor sharp edges in seconds. Keep your cutting tools performing at their best with DMT sharpeners.

What sets DMT sharpeners apart from other sharpening stones?

DMT has specialized in monocrystalline diamond sharpening surfaces since 1976. Their stones (e.g. DuoSharp®, Dia‑Sharp®, Diamond Whetstone™) are engineered to stay perfectly flat, resist wear, and provide consistent, fast cutting performance across repeated use—making them ideal for knives, woodworking chisels, and tool maintenance

What’s the difference between DuoSharp® and Dia‑Sharp® stones?

  • DuoSharp® features an interrupted “polka-dot” surface that traps swarf (metal filings), helping prevent clogging and maintain fast cutting. It typically offers double-sided grits or a continuous side in some “Plus” models.

  • Dia‑Sharp®, by contrast, uses a continuous diamond surface, which is ideal for sharpening small or pointed tools because there are no recesses to catch.

How long do DMT diamond stones last, and how should I maintain them?

DMT stones can last several years—but not forever—depending on use and maintenance. Their lifespan is extended by rinsing after use, drying before storage, and occasional cleaning with a toothbrush and abrasive cleaner if clogged. If performance declines, cleaning typically restores effectiveness.

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DMT | 8" Dia-Sharp® Bench Stone, Extra-Fine D8E - BPM Toolcraft
DMT | 8" Dia-Sharp® Bench Stone, Extra-Fine D8E - BPM Toolcraft Sold out
R 2,349.00
R 2,349.00 - R 2,349.00
R 2,349.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00

DMT | 8" Dia-Sharp® Bench Stone, Extra-Fine D8E

DMT

Versatile, compact, and portable, the 8" Dia-Sharp® bench stone is a great all-around choice Guaranteed not to hollow or groove, DMT®’s precise...

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R 2,349.00
R 2,349.00 - R 2,349.00
R 2,349.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00
Sold out
DMT | 2.5" Dia-Sharp® Diamond Mini-Hone®- Coarse Blue D2C - BPM Toolcraft
DMT | 2.5" Dia-Sharp® Diamond Mini-Hone®- Coarse Blue D2C - BPM Toolcraft Sold out
R 229.00 - R 229.00
R 229.00
R 229.00
R 229.00 - R 229.00
R 229.00

DMT | 2.5" Dia-Sharp® Diamond Mini-Hone®- Coarse Blue D2C

DMT

     Tight space—no worries! Dia-Sharp® 2.5” Diamond Mini-Hone® sharpener with its ergonomically designed handle provides comfortable sharpening, ...

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R 229.00 - R 229.00
R 229.00
R 229.00
R 229.00 - R 229.00
R 229.00
Sold out
DMT | Dia-Sharp® Diamond Mini-Hone®- Extra-Fine Green - BPM Toolcraft
DMT | Dia-Sharp® Diamond Mini-Hone®- Extra-Fine Green - BPM Toolcraft Sold out
R 229.00
R 229.00 - R 229.00
R 229.00
R 199.00
R 199.00 - R 199.00
R 199.00

DMT | Dia-Sharp® Diamond Mini-Hone®- Extra-Fine Green

DMT

     Tight space—no worries! Dia-Sharp® 2.5” Diamond Mini-Hone® sharpener with its ergonomically designed handle provides comfortable sharpening,...

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R 229.00
R 229.00 - R 229.00
R 229.00
R 199.00
R 199.00 - R 199.00
R 199.00
Sold out
DMT | 4" Diamond Whetstone™ Extra Fine A4E - BPM Toolcraft
DMT | 4" Diamond Whetstone™ Extra Fine A4E - BPM Toolcraft Sold out
R 599.00
R 599.00 - R 599.00
R 599.00
R 499.00
R 499.00 - R 499.00
R 499.00

DMT | 4" Diamond Whetstone™ Extra Fine A4E

DMT

Quick edge repair anywhere! A portable enhancement to any tool kit is the 4" Diamond stone in DMT®’s signature polka-dot pattern Stone measures...

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R 599.00
R 599.00 - R 599.00
R 599.00
R 499.00
R 499.00 - R 499.00
R 499.00
Sold out
DMT | 4" Diamond Whetstone™ Extra Extra Fine A4EE - BPM Toolcraft
Sold out
R 599.00
R 599.00 - R 599.00
R 599.00
R 499.00
R 499.00 - R 499.00
R 499.00

DMT | 4" Diamond Whetstone™ Extra Extra Fine A4EE

DMT

     A portable enhancement to any tool kit is the 4" Diamond stone in DMT®’s signature polka-dot pattern Stone measures 111X23mm Quick edge repai...

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R 599.00
R 599.00 - R 599.00
R 599.00
R 499.00
R 499.00 - R 499.00
R 499.00
Sold out
Sold out
R 3,499.00
R 3,499.00 - R 3,499.00
R 3,499.00
R 2,899.00
R 2,899.00 - R 2,899.00
R 2,899.00

DMT | 8" DuoSharp® Bench Stone Fine/Coarse with Base

DMT

  Innovative, multi-patented DuoSharp® Bench Stone is a precision flat, two diamond surfaced sharpener guaranteed to provide consistent, even sharp...

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R 3,499.00
R 3,499.00 - R 3,499.00
R 3,499.00
R 2,899.00
R 2,899.00 - R 2,899.00
R 2,899.00
Sold out
DMT | 4" Diamond Whetstone™ Deluxe Set of 4 in Pouch W4K - BPM Toolcraft
DMT | 4" Diamond Whetstone™ Deluxe Set of 4 in Pouch W4K - BPM Toolcraft
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R 1,999.00
R 1,999.00 - R 1,999.00
R 1,999.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00

DMT | 4" Diamond Whetstone™ Deluxe Set of 4 in Pouch W4K

DMT

     4" Diamond Whetstone™ Kit of 4 Assorted Models Convenient 4” pocket models of Diamond Whetstone™ and Machinist sharpeners with convenient blac...

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R 1,999.00
R 1,999.00 - R 1,999.00
R 1,999.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00
Sold out
Sold out
R 5,499.00
R 5,499.00 - R 5,499.00
R 5,499.00
R 4,999.00
R 4,999.00 - R 4,999.00
R 4,999.00

DMT | Dia-Flat™ Lapping Plate

DMT

     The Dia-Flat™ Lapping Plate is designed to easily flatten all conventional stones and waterstones faster than any other method Using the new r...

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R 5,499.00
R 5,499.00 - R 5,499.00
R 5,499.00
R 4,999.00
R 4,999.00 - R 4,999.00
R 4,999.00
Sold out
Sold out
R 299.00
R 299.00 - R 299.00
R 299.00
R 249.00
R 249.00 - R 249.00
R 249.00

DMT | Dia-Sharp® 2.5" Mini-Hone Offset Extra-Fine

DMT

   For awkward, close-fitting spaces use DMT®’s offset Dia-Sharp® 2.5” Diamond Mini-Hone® Sharpener The offset, ergonomically designed handle provi...

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R 299.00
R 299.00 - R 299.00
R 299.00
R 249.00
R 249.00 - R 249.00
R 249.00
Sold out
Sold out
R 4,299.00
R 4,299.00 - R 4,299.00
R 4,299.00
R 3,499.00
R 3,499.00 - R 3,499.00
R 3,499.00

DMT | 10" Duosharp Bench Stone Coarse/Extra Coarse

DMT

The innovative, multi-patented DuoSharp® Bench Stone is a precision flat, two diamond surfaced sharpener guaranteed to provide consistent, even...

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R 4,299.00
R 4,299.00 - R 4,299.00
R 4,299.00
R 3,499.00
R 3,499.00 - R 3,499.00
R 3,499.00
Sold out
DMT | 8" Dia-Sharp® Bench Stone, Coarse D8C - BPM Toolcraft
DMT | 8" Dia-Sharp® Bench Stone, Coarse D8C - BPM Toolcraft
Sold out
R 1,699.00 - R 1,699.00
R 1,699.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00

DMT | 8" Dia-Sharp® Bench Stone Coarse D8C

DMT

Versatile, compact, and portable, the 8 Inch Dia-Sharp® bench stone is a great all-around choice Guaranteed not to hollow or groove, DMT®’s pre...

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R 1,699.00 - R 1,699.00
R 1,699.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00
Sold out
DMT | 8" Dia-Sharp® Bench Stone, Fine D8F - BPM Toolcraft
DMT | 8" Dia-Sharp® Bench Stone, Fine D8F - BPM Toolcraft
Sold out
R 1,939.00
R 1,939.00 - R 1,939.00
R 1,939.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00

DMT | 8" Dia-Sharp® Bench Stone Fine D8F

DMT

Versatile, compact, and portable, the 8" Dia-Sharp® bench stone is a great all-around choice Guaranteed not to hollow or groove, DMT®’s precise...

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Email when available
R 1,939.00
R 1,939.00 - R 1,939.00
R 1,939.00
R 1,699.00
R 1,699.00 - R 1,699.00
R 1,699.00
Sold out
DMT | 8" Dia-Sharp® Diamond Bench Stone, Extra-Coarse D8X - BPM Toolcraft
DMT | 8" Dia-Sharp® Diamond Bench Stone, Extra-Coarse D8X - BPM Toolcraft
Sold out
R 1,899.00
R 1,899.00 - R 1,899.00
R 1,899.00
R 1,599.00
R 1,599.00 - R 1,599.00
R 1,599.00

DMT | 8" Dia-Sharp® Diamond Bench Stone Extra-Coarse D8X

DMT

Versatile, compact, and portable, the 8" Dia-Sharp® bench stone is a great all-around choice Guaranteed not to hollow or groove, DMT®’s precise...

View full details
Email when available
R 1,899.00
R 1,899.00 - R 1,899.00
R 1,899.00
R 1,599.00
R 1,599.00 - R 1,599.00
R 1,599.00
Sold out
DMT | 2.5" Dia-Sharp® Diamond Mini-Hone®- Fine D2F - BPM Toolcraft
DMT | 2.5" Dia-Sharp® Diamond Mini-Hone®- Fine D2F - BPM Toolcraft
Sold out
R 229.00 - R 229.00
R 229.00
R 229.00
R 229.00 - R 229.00
R 229.00

DMT | 2.5" Dia-Sharp® Diamond Mini-Hone®- Fine D2F

DMT

     Tight space—no worries! Dia-Sharp® 2.5” Diamond Mini-Hone® sharpener with its ergonomically designed handle provides comfortable sharpening,...

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Email when available
R 229.00 - R 229.00
R 229.00
R 229.00
R 229.00 - R 229.00
R 229.00
Sold out
DMT | Dia-Paste™ Diamond Compound Kit of 1, 3 & 6 Micron DPK - BPM Toolcraft
DMT | Dia-Paste™ Diamond Compound Kit of 1, 3 & 6 Micron DPK - BPM Toolcraft
Sold out
R 1,099.00
R 1,099.00 - R 1,099.00
R 1,099.00
R 899.00
R 899.00 - R 899.00
R 899.00

DMT | Dia-Paste™ Diamond Compound Kit of 1, 3 & 6 Micron

DMT

     Improve tool performance with DMT’s easy-to-use Dia-Paste™ Diamond Compound A light application will create a highly polished, mirror finish,...

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R 1,099.00
R 1,099.00 - R 1,099.00
R 1,099.00
R 899.00
R 899.00 - R 899.00
R 899.00
Sold out
DMT | 8" Dia-Sharp® Bench Stone, Extra-Extra-Fine D8EE - BPM Toolcraft
DMT | 8" Dia-Sharp® Bench Stone, Extra-Extra-Fine D8EE - BPM Toolcraft
Sold out
R 2,999.00
R 2,999.00 - R 2,999.00
R 2,999.00
R 2,599.00
R 2,599.00 - R 2,599.00
R 2,599.00

DMT | 8" Dia-Sharp® Bench Stone, Extra-Extra-Fine D8EE

DMT

     Versatile, compact and portable, the 8 Inch Dia-Sharp® benchstone is a great all-around choice Guaranteed not to hollow or groove, DMT®’s pre...

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Email when available
R 2,999.00
R 2,999.00 - R 2,999.00
R 2,999.00
R 2,599.00
R 2,599.00 - R 2,599.00
R 2,599.00
Sold out
DMT | DuoSharp® Base with MagnaBase Adaptor, Sharpening Stone Accessory - BPM Toolcraft
DMT | DuoSharp® Base with MagnaBase Adaptor, Sharpening Stone Accessory - BPM Toolcraft
Sold out
R 1,299.00
R 1,299.00 - R 1,299.00
R 1,299.00
R 999.00
R 999.00 - R 999.00
R 999.00

DMT | DuoSharp® Base with MagnaBase Adaptor, Sharpening Stone Accessory

DMT

     Professionals rely on the superior quality and versatility of DMT® products The DMT DuoBase Bench Stone Accessory can be used with ALL DuoSh...

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R 1,299.00
R 1,299.00 - R 1,299.00
R 1,299.00
R 999.00
R 999.00 - R 999.00
R 999.00
Sold out
DMT | DuoBase Sharpening Stone Accessory B8250 - BPM Toolcraft
DMT | DuoBase Sharpening Stone Accessory B8250 - BPM Toolcraft
Sold out
R 699.00
R 699.00 - R 699.00
R 699.00
R 649.00
R 649.00 - R 649.00
R 649.00

DMT | DuoBase Sharpening Stone Accessory B8250

DMT

     Professionals rely on the superior quality and versatility of DMT® products The DMT DuoBase Bench Stone Accessory can be used with ALL DuoSh...

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R 699.00
R 699.00 - R 699.00
R 699.00
R 649.00
R 649.00 - R 649.00
R 649.00
Sold out
DMT | Diafold™ Diamond Sharpener, Double Sided, Coarse/Fine BSFWFC - BPM Toolcraft
DMT | Diafold™ Diamond Sharpener, Double Sided, Coarse/Fine BSFWFC - BPM Toolcraft
Sold out
R 1,199.00
R 1,199.00 - R 1,199.00
R 1,199.00
R 1,049.00
R 1,049.00 - R 1,049.00
R 1,049.00

DMT | Diafold™ Diamond Sharpener Double Sided Coarse/Fine BSFWFC

DMT

     The DMT Double Sided Diafold® Sharpener offers two stage sharpening with compact convenience Two Diamond Whetstone™ sharpeners combined to c...

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R 1,199.00
R 1,199.00 - R 1,199.00
R 1,199.00
R 1,049.00
R 1,049.00 - R 1,049.00
R 1,049.00
Sold out
DMT | 6" Dia-Sharp® Bench Stone (Extra-Extra-Fine) D6EE - BPM Toolcraft
Sold out
R 1,599.00
R 1,599.00 - R 1,599.00
R 1,599.00
R 1,199.00
R 1,199.00 - R 1,199.00
R 1,199.00

DMT | 6" Dia-Sharp® Bench Stone Extra-Extra-Fine D6EE

DMT

     Expect cutting edge performance with DMT® 's Dia-Sharp® 6” continuous diamond sharpening bench stone For knives, blades and fine tools. Size:...

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R 1,599.00
R 1,599.00 - R 1,599.00
R 1,599.00
R 1,199.00
R 1,199.00 - R 1,199.00
R 1,199.00
Sold out
DMT | Dia-Sharp® 6" Bench Stone, Extra-Coarse D6X - BPM Toolcraft
DMT | Dia-Sharp® 6" Bench Stone, Extra-Coarse D6X - BPM Toolcraft
Sold out
R 999.00
R 999.00 - R 999.00
R 999.00
R 799.00
R 799.00 - R 799.00
R 799.00

DMT | Dia-Sharp® 6" Bench Stone, Extra-Coarse D6X

DMT

     Expect cutting edge performance with DMT® 's Dia-Sharp® 6” continuous diamond sharpening bench stone For knives, blades and fine tools Size: ...

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R 999.00
R 999.00 - R 999.00
R 999.00
R 799.00
R 799.00 - R 799.00
R 799.00
Sold out
DMT | Dia-Sharp® 4" Continuous Diamond Sharpening Stone (Fine) D4F - BPM Toolcraft
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R 399.00 - R 399.00
R 399.00
R 399.00
R 399.00 - R 399.00
R 399.00

DMT | Dia-Sharp® 4" Continuous Diamond Sharpening Stone (Fine) D4F

DMT

     The Dia-Sharp® 4” Continuous Diamond Sharpening Stone delivers full-size sharpening while maximizing work and storage space Perfectly suited ...

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R 399.00 - R 399.00
R 399.00
R 399.00
R 399.00 - R 399.00
R 399.00
Sold out
DMT | Dia-Sharp® 4" Continuous Diamond Sharpening Stone (Coarse) D4C - BPM Toolcraft
Sold out
R 399.00 - R 399.00
R 399.00
R 399.00
R 399.00 - R 399.00
R 399.00

DMT | Dia-Sharp® 4" Continuous Diamond Sharpening Stone, Coarse

DMT

     The Dia-Sharp® 4” Continuous Diamond Sharpening Stone delivers full-size sharpening while maximizing work and storage space Perfectly suite...

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R 399.00 - R 399.00
R 399.00
R 399.00
R 399.00 - R 399.00
R 399.00
Sold out
DMT | Dia-Sharp® 4" Continuous Diamond Sharpening Stone (Extra-Fine) D4E - BPM Toolcraft
Sold out
R 399.00 - R 399.00
R 399.00
R 399.00
R 399.00 - R 399.00
R 399.00

DMT | Dia-Sharp® 4" Continuous Diamond Sharpening Stone (Extra-Fine) D4E

DMT

     The Dia-Sharp® 4” Continuous Diamond Sharpening Stone delivers full-size sharpening while maximizing work and storage space Perfectly suited ...

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Email when available
R 399.00 - R 399.00
R 399.00
R 399.00
R 399.00 - R 399.00
R 399.00
Sold out