Products

Suppliers
Filter Gallery
1,707

Vitrified Cbn Wheel

Products
Grinding Wheel Diamond Grinding Wheel Grinding Tool Vitrified Cbn Abrasive Vitrified Cbn Powder

Sorry! No matches were found.

Diamond Grinding Wheel for Cutting Tools, Vitrified CBN Wheel

Diamond Grinding Wheel for Cutting Tools, Vitrified CBN Wheel

1 Piece (MOQ)
More
Main Products: Diamond/CBN Grinding Wheels, PDC PCD, Synthetic Diamond Powder, CBN, Sharpening Stone, Conventional Abrasives and Tools
Contact Supplier
Audited Supplier Audited Supplier Since 2017
Henan E-Grind Abrasives Co., Ltd.

Henan, China Since 2017
Chat Now Send Inquiry
Automotive Engine Parts Grinding Wheel Crankshaft CBN Grinding Wheel Vitrified CBN Grinding Wheel

Automotive Engine Parts Grinding Wheel Crankshaft CBN Grinding Wheel Vitrified CBN Grinding Wheel

US $ 248-480 / Piece FOB
1 Piece (MOQ)
More
Bonding Agent : Ceramic
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
Camshaft and Crankshaft Grinding Wheels, Vitrified Bond CBN Wheels

Camshaft and Crankshaft Grinding Wheels, Vitrified Bond CBN Wheels

US $ 1,500 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Abrasives, Grinding Wheel, Diamond Wheel, Cut-off Wheel, Diamond Tool, CBN Wheel, Superabrasive, Cutting Wheel, Dicing Blade, Borazon Wheel
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Super Abrasives Vitrified CBN Grinding Wheels for Saw Blades

Super Abrasives Vitrified CBN Grinding Wheels for Saw Blades

US $ 58.5 / Piece FOB
2 Pieces (MOQ)
More
Type : Diamond Saw Blade
Contact Supplier
Audited Supplier Audited Supplier Since 2018
Hangzhou Xinsheng Precision Machinery Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2018
Chat Now Send Inquiry
Xinrui Vitrified and Hybrid Bond Superabrasives Diamond and CBN Grinding Wheel

Xinrui Vitrified and Hybrid Bond Superabrasives Diamond and CBN Grinding Wheel

US $ 20-280 / Piece FOB
1 Piece (MOQ)
More
Main Products: Grinding Wheel, Abrasive Disc, Diamond Micro-Powder, Synthetic Diamond
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhe Cheng Xinrui Diamond Tools CO., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
CBN/Diamond Grinding Wheel, Vitrified Bond Diamond Grinding Wheel

CBN/Diamond Grinding Wheel, Vitrified Bond Diamond Grinding Wheel

US $ 19.8-69 / Piece FOB
10 Pieces (MOQ)
More
Manufacturing Process : Electroplating
Contact Supplier
Audited Supplier Audited Supplier Since 2019
SINO ZHENG INDUSTRIAL INC.

Manufacturer/Factory,Trading Company

Henan, China Since 2019
Chat Now Send Inquiry
Vitrified Bond CBN Grinding Wheels, Superabrasives Diamond Wheels, Indexable Inserts in Tungsten Carbide, PCD (polycrystalline diamond) and PCBN

Vitrified Bond CBN Grinding Wheels, Superabrasives Diamond Wheels, Indexable Inserts in Tungsten Carbide, PCD (polycrystalline diamond) and PCBN

US $ 88 / Piece FOB
15 Pieces (MOQ)
More
Main Products: Abrasives, Grinding Wheel, Diamond Wheel, Cut-off Wheel, Diamond Tool, CBN Wheel, Superabrasive, Cutting Wheel, Dicing Blade, Borazon Wheel
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Vitrified Crankshaft Grinding Wheel Main Bearing Rod Grinding CBN Wheel for Camshafts

Vitrified Crankshaft Grinding Wheel Main Bearing Rod Grinding CBN Wheel for Camshafts

US $ 248-480 / Piece FOB
1 Piece (MOQ)
More
Shape : Flat-Shaped
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
Factory Customized High Quality Vitrified Diamond CBN Abrasive Wheels

Factory Customized High Quality Vitrified Diamond CBN Abrasive Wheels

US $ 19.8-69 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Magnesium Forged Wheel, Magnesium Heatsink, Magnesium Welding Wire, Cathodic Protection, Magnesium Die Casting, Magnesium Rod, Magnesium Plate, Magnesium Tube
Contact Supplier
Audited Supplier Audited Supplier Since 2019
SINO ZHENG INDUSTRIAL INC.

Manufacturer/Factory,Trading Company

Henan, China Since 2019
Chat Now Send Inquiry
Crankshaft Cylindrical Grinding Wheels for Cam Lobes Vitrified CBN Grinding Wheel

Crankshaft Cylindrical Grinding Wheels for Cam Lobes Vitrified CBN Grinding Wheel

US $ 1,800-2,500 / pieces FOB
1 pieces (MOQ)
More
Grain Size : 280#
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhengzhou Hongtuo Precision Tools Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
Vitrified Bond CBN Diamond Cylinder Grinding Wheels

Vitrified Bond CBN Diamond Cylinder Grinding Wheels

US $ 20 / Piece FOB
1 Piece (MOQ)
More
Main Products: Honing Machines, Honing Tools, Grinding Machines, Grinding Machine Tools
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Wuxi Jiuxu Machinery Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2024
Chat Now Send Inquiry
Vitrified Bond Grinding Wheel for Dressing of Diamond and CBN Grinding Wheel

Vitrified Bond Grinding Wheel for Dressing of Diamond and CBN Grinding Wheel

US $ 50-250 / Piece FOB
10 Pieces (MOQ)
More
Shapes : Edge Shape
Contact Supplier
Audited Supplier Audited Supplier Since 2021
iSharp Abrasives Tools Science Institute

Manufacturer/Factory

Henan, China Since 2021
Chat Now Send Inquiry
Grinding Wheel Diamond Grinding Wheel Diamond Saw Blade Grinding Powder Superhard Materials Grinding Machine
Vitrified CBN Internal Grinding Wheel Matched with Japan Toyo Machine

Vitrified CBN Internal Grinding Wheel Matched with Japan Toyo Machine

US $ 30-50 / Piece FOB
1 Piece (MOQ)
More
Main Products: superabrasive tools
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhengzhou Hongtuo Precision Tools Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
Vitrified Diamond & CBN Wheels, Tool Grinding Abrasives

Vitrified Diamond & CBN Wheels, Tool Grinding Abrasives

US $ 69 / Piece FOB
20 Pieces (MOQ)
More
Material : Diamond
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
1A1 Crankshaft Grinding Wheel Auto-Engine Crankshaft or Camshaft Vitrified Bond CBN Grinding Wheel

1A1 Crankshaft Grinding Wheel Auto-Engine Crankshaft or Camshaft Vitrified Bond CBN Grinding Wheel

US $ 248-480 / Piece FOB
1 Piece (MOQ)
More
Main Products: Hardware Products, Ordinary Mechanical Equipment, Diamond Grinding Wheel, Cutting Tools, Cutting Wheels, PCD(Polycrystalline Diamond), PDC Drill Bit, Lab Grown Diamond, Knife Sharpening Stone
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
Top Quality Resin Bond Diamond and Vitrified Bond CBN Grinding Wheels

Top Quality Resin Bond Diamond and Vitrified Bond CBN Grinding Wheels

US $ 50-70 / pieces FOB
1 pieces (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhengzhou Hongtuo Precision Tools Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
Vitrified Cylindrical Diamond Grinding Wheel for PDC Cutter, Superabrasives CBN Tooling

Vitrified Cylindrical Diamond Grinding Wheel for PDC Cutter, Superabrasives CBN Tooling

US $ 10,000 / Piece FOB
2 Pieces (MOQ)
More
Main Products: Abrasives, Grinding Wheel, Diamond Wheel, Cut-off Wheel, Diamond Tool, CBN Wheel, Superabrasive, Cutting Wheel, Dicing Blade, Borazon Wheel
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Vitrified Bonded Grinding Whee Abrasives Grinding Wheels for Crankshaft Camshaft CBN Grinding Wheels

Vitrified Bonded Grinding Whee Abrasives Grinding Wheels for Crankshaft Camshaft CBN Grinding Wheels

US $ 500-1,100 / Piece FOB
1 Piece (MOQ)
More
Bonding Agent : Ceramic
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
1A1 Vitrified Bond CBN Grinding Wheel Grinding Wheel for Auto-Engine Crankshaft

1A1 Vitrified Bond CBN Grinding Wheel Grinding Wheel for Auto-Engine Crankshaft

US $ 248-480 / Piece FOB
1 Piece (MOQ)
More
Main Products: Hardware Products, Ordinary Mechanical Equipment, Diamond Grinding Wheel, Cutting Tools, Cutting Wheels, PCD(Polycrystalline Diamond), PDC Drill Bit, Lab Grown Diamond, Knife Sharpening Stone
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
Grinding Wheel for Crankshaft and Camshaft, Vitrified Bond CBN Wheels

Grinding Wheel for Crankshaft and Camshaft, Vitrified Bond CBN Wheels

US $ 10,000 / Piece FOB
1 Piece (MOQ)
More
Abrasive : Superabrasive
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Related Videos
  • What is Diamond Grinding Wheel for Cutting Tools, Vitrified CBN Wheel
    What is Diamond Grinding Wheel for Cutting Tools, Vitrified CBN Wheel
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Automotive Engine Parts Grinding Wheel Crankshaft CBN Grinding Wheel Vitrified CBN Grinding Wheel
    What is Automotive Engine Parts Grinding Wheel Crankshaft CBN Grinding Wheel Vitrified CBN Grinding Wheel
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Camshaft and Crankshaft Grinding Wheels, Vitrified Bond CBN Wheels
    What is Camshaft and Crankshaft Grinding Wheels, Vitrified Bond CBN Wheels
    Negotiable
    10 Pieces (MOQ)
    Contact Supplier
  • What is Super Abrasives Vitrified CBN Grinding Wheels for Saw Blades
    What is Super Abrasives Vitrified CBN Grinding Wheels for Saw Blades
    Negotiable
    2 Pieces (MOQ)
    Contact Supplier
Large Diameter Wheels, Vitrified Superabrasive Wheels, Diamond / CBN Grinding Wheels

Large Diameter Wheels, Vitrified Superabrasive Wheels, Diamond / CBN Grinding Wheels

100 Pieces (MOQ)
More
Main Products: Abrasives, Grinding Wheel, Diamond Wheel, Cut-off Wheel, Diamond Tool, CBN Wheel, Superabrasive, Cutting Wheel, Dicing Blade, Borazon Wheel
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Resin, Vitrified and Rubber Bonds Grinding Wheels, CBN and Diamond Superabrasives Wheel

Resin, Vitrified and Rubber Bonds Grinding Wheels, CBN and Diamond Superabrasives Wheel

US $ 46-800 / Piece FOB
100 Pieces (MOQ)
More
Circular Degree : <1
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
High Quality Vitrified Bond CBN Abrasive Double End Face Grinding Wheel for Valve Plate

High Quality Vitrified Bond CBN Abrasive Double End Face Grinding Wheel for Valve Plate

US $ 1,600-2,000 / pieces FOB
1 pieces (MOQ)
More
Main Products: superabrasive tools
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhengzhou Hongtuo Precision Tools Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
Resinoid, Vitrified and Electroplated Diamond & CBN Wheels. Superabrasives Grinding Wheels

Resinoid, Vitrified and Electroplated Diamond & CBN Wheels. Superabrasives Grinding Wheels

US $ 69 / Piece FOB
20 Pieces (MOQ)
More
Types : Cutting Wheel
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

Hot Sale 1A8 1A1w CBN Grinding Wheel of Inner and Outer Faces of Ball Roller Bearings Vitrified CBN Grinding Wheel

Hot Sale 1A8 1A1w CBN Grinding Wheel of Inner and Outer Faces of Ball Roller Bearings Vitrified CBN Grinding Wheel

US $ 50-120 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Hardware Products, Ordinary Mechanical Equipment, Diamond Grinding Wheel, Cutting Tools, Cutting Wheels, PCD(Polycrystalline Diamond), PDC Drill Bit, Lab Grown Diamond, Knife Sharpening Stone
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
Vitrified Bonds Diamond Grinding Wheels for PCD and PCBN Tools, Ceramics, Superabrasives CBN Tools

Vitrified Bonds Diamond Grinding Wheels for PCD and PCBN Tools, Ceramics, Superabrasives CBN Tools

US $ 99 / Piece FOB
10 Pieces (MOQ)
More
Material : Diamond
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Vitrified Crankshaft Grinding Wheel Main Bearing Rod Grinding CBN Wheel for Camshafts

Vitrified Crankshaft Grinding Wheel Main Bearing Rod Grinding CBN Wheel for Camshafts

US $ 1,800-2,500 / pieces FOB
1 pieces (MOQ)
More
Main Products: superabrasive tools
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhengzhou Hongtuo Precision Tools Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
11A2b CNC Indexable Insert Diamond CBN Grinding Wheel Vitrified Bond Diamond Peripheral Grinding Wheels

11A2b CNC Indexable Insert Diamond CBN Grinding Wheel Vitrified Bond Diamond Peripheral Grinding Wheels

US $ 100-500 / Piece FOB
1 Piece (MOQ)
More
Shape : Flat-Shaped
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
6A2 Ceramic Bond Diamond Bruting Wheel Vitrified CBN Cup Grinding Wheel for PCD PCBN Tools

6A2 Ceramic Bond Diamond Bruting Wheel Vitrified CBN Cup Grinding Wheel for PCD PCBN Tools

US $ 50-78 / Piece FOB
1 Piece (MOQ)
More
Main Products: Hardware Products, Ordinary Mechanical Equipment, Diamond Grinding Wheel, Cutting Tools, Cutting Wheels, PCD(Polycrystalline Diamond), PDC Drill Bit, Lab Grown Diamond, Knife Sharpening Stone
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Zhengzhou Ruizuan Diamond Tool Co., Ltd.

Trading Company

Henan, China Since 2023
Chat Now Send Inquiry
Bosdi China Professional Manufacturer Diamond Grinding Wheel High-Precision Abrasive Grinding Wheel, Vitrified CBN Wheel

Bosdi China Professional Manufacturer Diamond Grinding Wheel High-Precision Abrasive Grinding Wheel, Vitrified CBN Wheel

US $ 12.36-44.7 / pc FOB
30 pc (MOQ)
Contact Supplier
Audited Supplier Audited Supplier Since 2019
ZHENGZHOU BOSDI ABRASIVES CO., LTD.

Manufacturer/Factory,Trading Company,Other

Henan, China Since 2019
Chat Now Send Inquiry
Hot Sale Vitrified Bond Crankshaft CBN Grinding Wheel for Thrust Surface

Hot Sale Vitrified Bond Crankshaft CBN Grinding Wheel for Thrust Surface

US $ 1,800-2,500 / pieces FOB
1 pieces (MOQ)
More
Main Products: superabrasive tools
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Zhengzhou Hongtuo Precision Tools Co., Ltd.

Manufacturer/Factory

Henan, China Since 2024
Chat Now Send Inquiry
Resin Bond Superabrasive Grinding Wheels, Diamond and CBN Grinding Wheels

Resin Bond Superabrasive Grinding Wheels, Diamond and CBN Grinding Wheels

US $ 10-12 / PCS FOB
1,000 PCS (MOQ)
More
Material : Alumina
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Qingdao Sennight International Trading Co., Ltd.

Manufacturer/Factory

Shandong, China Since 2022
Chat Now Send Inquiry
Diamond & CBN Vitrified Bonded Wheels, Superabrasives CNC Precision Grinding

Diamond & CBN Vitrified Bonded Wheels, Superabrasives CNC Precision Grinding

US $ 100 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Abrasives, Grinding Wheel, Diamond Wheel, Cut-off Wheel, Diamond Tool, CBN Wheel, Superabrasive, Cutting Wheel, Dicing Blade, Borazon Wheel
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Electroplated Diamond/CBN Tools, Abrasives, Resin Bond, Vitrified Bond Superabrasive CBN & Diamond Grinding Wheels

Electroplated Diamond/CBN Tools, Abrasives, Resin Bond, Vitrified Bond Superabrasive CBN & Diamond Grinding Wheels

US $ 48 / Piece FOB
20 Pieces (MOQ)
More
Grain Size : 120#
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Vitrified Bond CBN Grinding Wheels

Vitrified Bond CBN Grinding Wheels

1 Piece (MOQ)
More
Main Products: Bearings, Spindles, Precision Bearing Instruments, Bearing Testing Machines, Bearing Manufacturing Machines, Bearing Relevant Materials, Slewing Bearing, Bearing for Wind Turbine Generator, Large Size Bearing, Bearing Ball
Contact Supplier
Audited Supplier Audited Supplier Since 2014
Luoyang Bearing Research Institute Co., Ltd.

Manufacturer/Factory,Trading Company

Henan, China Since 2014
Chat Now Send Inquiry
Vitrified Bond Diamond and CBN Grinding Wheels (6A2, 1A1W) Superabrasives

Vitrified Bond Diamond and CBN Grinding Wheels (6A2, 1A1W) Superabrasives

US $ 80 / Piece FOB
10 Pieces (MOQ)
More
Circular Degree : <1
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Taizhou Sumeng Grinding Wheel Co., Ltd.

Manufacturer/Factory

Jiangsu, China Since 2006
Chat Now Send Inquiry
Grinding Wheel Diamond Grinding Wheel Grinding Tool Vitrified Cbn Abrasive Vitrified Cbn Powder
View More

Related Searches

V Wheel T Wheel Cutting Wheel Wheel Set Plastic Wheel Custom Wheel Wheel Tools Metal Wheel Brake Wheel Wholesale Vitrified Cbn Wheel

Browse by Categories

Home > Tools & Hardware > Abrasive & Grinding > Grinding Wheel
1/48
TOP

Search Filter

Categories

More Less
  • Grinding Wheel
  • Diamond Grinding Wheel
  • Diamond Saw Blade
  • Grinding Powder
  • Superhard Materials
  • Grinding Machine
  • Other Tools & Hardware
  • Non-Woven Abrasives
  • Metal Processing Machinery Parts
  • Milling Machine

Abrasive

More Less
  • Superabrasive
  • Normal Abrasive
  • Natural Abrasives

Circular Degree

More Less
  • <1
  • <0.1
  • <0.05
  • <0.01

Material

More Less
  • Diamond
  • Alumina
  • Silicon Carbide

Shapes

More Less
  • Edge Shape
  • Section Shape
  • With Handle

Technics

More Less
  • Sinter
  • Electroplating

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Individuals/SOHO
  • Group Corporation
  • Other

Company Location

More Less
  • Jiangsu
  • Henan
  • Hunan
  • Shandong
  • Guangdong
  • Zhejiang
  • Shanghai
  • Liaoning
  • Fujian
  • Shaanxi
  • Shanxi
  • Hebei
  • Hubei
  • Anhui
  • Jiangxi
Reset Done