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Diamond Machine Technology (DMT®) Sharpening with diamonds results in the finest, sharpest edges and DMT® products are the finest Diamond Sharpening products available – Worldwide. What does the "DMT® Difference" mean? Simply put, DMT® has done only one thing since 1976 – innovate and build the world’s best diamond sharpeners. Whether in continuous diamond surface or our trademark interrupted "polka-dot" pattern – don’t accept imitations.

Frequently Asked Questions about DMT and Diamond Sharpening.

Shop DMT Specials and Kits

DMT Duosharp Plus Diamond Kit
List Price: $186.83
Price: $139.99

DMT 10" DuoSharp Diamond Kit
List Price: $325.27
Price: $199.99

DMT 6" Dia-Sharp Kit
List Price: $127.00
Price: $75.99

DMT 8" Dia-Sharp Diamond Kit
Item #D8KIT
List Price: $277.00
Price: $199.99
DMT Dia-Sharp 8
8" Dia-Sharp Diamond Stone
Item #D8
List Price: $69.25
Price: $53.99

10" DMT DuoSharp Bench Stone
Item #W250
List Price: $157.58
Starting Price: $124.99

8" DMT DuoSharp Plus Bench Stone
Item #WM8
List Price: $86.66
Starting Price: $79.99

DMT Double-Sided Diafold Kit
List Price: $116.66
Price: $72.99

12" Dia-Sharp® MagnaBase System
Item #D12
List Price: $199.99
Price: $187.99

Double Sided Diafold
Item #FW
List Price: $43.11
Price: $39.99
DMT Duosharp Diamond Stone
8" DMT DuoSharp Bench Stone
Item #W8DUO
List Price: $111.43
Starting Price: $87.99
6" Diamond Whetstone
Item #W6
List Price: $50.03
Price: $44.99

DMT Three Stone 6" Diamond Whetstone Set in Hardwood Box
Item #W6EFC
List Price: $111.43
Price: $99.99
DMT Sharpening Guide
DMT Knife Sharpening Guide
Item #ABG
List Price: $12.96
Price: $11.99
DMT Bench Stone Base
DMT Bench Stone Holder
Item #B8250
List Price: $19.08
Price: $16.99

Diafold Serrated Knife Sharpener
Item #FS
List Price: $30.44
Starting Price: $27.99

DMT Aligner Pro Kit
List Price: $74.25
Price: $64.99

DMT Deluxe Aligner
List Price: $66.40
Price: $54.99

DMT QuickEdge Aligner Kit
Item #AKFC
List Price: $55.15
Price: $48.99
DMT Dia-Sharp 6
6" Dia-Sharp Diamond Stone
Item #D6
List Price: $36.61
Price: $29.99
DMT Double Sided Dia-Sharp
6" Double Sided Dia-Sharp Diamond Stone
Item #D62
List Price: $63.50
Price: $49.99
11 1/2" Dia-Sharp Diamond Stone
Item #D11
List Price: $87.21
Price: $71.99

10" DMT Dia-Sharp Diamond Stone
Item #D10
List Price: $131.52
Price: $99.99
DMT Extra Extra Fine D8EE
8" Extra Extra Fine Diamond Stone
Item #D8EE
List Price: $107.32
Price: $89.99
Extra Extra Coarse Diamond Stone DMT
8" 2X Diamond Stone
Item #D8XX
List Price: $107.39
Price: $89.99

8" Medium Extra Fine Diamond Stone
Item #D8ME
List Price: $107.32
Price: $89.99

DMT 4" Dia-Sharp Diamond Stone
Item #D4
List Price: $15.40
Price: $12.99
DMT 8 inch Diamond Whetstone in Wood Box
8" Diamond Whetstone with Wood Case
Item #W8
List Price: $79.99
Price: $74.99
DMT Diamond Sharpening Steel
DMT Diamond Steel
Item #DS2
List Price: $46.79
Price: $39.99
DMT Ceramic Sharpening Steel
Ceramic Sharpening Steel
Item #CS2
List Price: $56.87
Price: $45.99
Credit Card Sized Sharpener
Diamond Card Sized Sharpener
Item #D3
List Price: $13.84
Starting Price: $11.99

Kitchen Essentials Sharpening Kit
Item #KESK2
List Price: $130.61
Starting Price: $99.99

Ultimate Kitchen Sharpening Kit
List Price: $244.92
Price: $179.99

Aligner Replacement Stones
Item #A4
List Price: $19.14
Price: $16.99

Single Sided Diafold
Item #FWS
List Price: $25.69
Starting Price: $23.99

Diafold® Magna-Guide™ Quad Kit with EE/E/F/C Grits
Item #DMG-4
List Price: $84.86
Price: $75.99

DMT Diafold Magna-Guide Sharpening System
List Price: $54.58
Price: $49.99

Dia-Sharp Diamond Mini-Hone Kit
Item #D2K
List Price: $24.71
Price: $20.99

DMT Mini-Sharp with Fishhook Groove
Item #FF70
List Price: $15.36
Price: $13.99

DMT Mini-Sharp
Item #F70
List Price: $12.01
Price: $10.99
DMT 6 inch Diamond Whetstone in Wood Box
6" Diamond Whetstone with Wood Case
Item #WB6
List Price: $62.07
Price: $54.99

DMT Diamond Flat File
Item #FF
List Price: $29.83
Price: $25.99

DMT Dia-Flat Lapping Plate
List Price: $205.99
Price: $189.99

DMT Dia-Flat 95 Lapping Plate
Item #DIA-FLAT95
List Price: $205.95
Price: $189.99

DMT Diamond Chainsaw File
Item #FCS
List Price: $29.50
Price: $26.99
I recently placed my first order after finding you on the web while looking for grinding wheels. I am a customer for life. Here's why. My first order was a simple white grinding wheel for a "normal joe's shop". When I received the wrong wheel (150 grit instead of the ordered 100 grit) I called and without hesitation or the 3rd degree another wheel was sent off. No questioning of my integrity, intelligence or honor. Simply "I am sorry, we'll send the correct wheel off immediately..." The right thing was done by a neat guy. I was treated like an adult. Unbelievable in this day and age...proper...and priceless. Price, performance, responsiveness and customer service par excel-lance. 6-Stars! All my sharpening orders, albeit small shop orders, will now be with you. Promote you I will.
Greg T, Iowa
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Phone Orders: 1-800-351-8234

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