Tungsten Carbide Knives
For working with tissues embedded in glycolmethacrylate (GMA) or performing routine plastic sectioning of JB4
 
 
16cm Tungsten Carbide
Applications
  • MMA sectioning of bone and hard materials
  • Frozen sections of bone and hard materials
  • GMA sections of hard tissue
  • Arterial stents embedded in MMA
  • Composites of plastic materials with metal or fiber fillers
  • Study of coatings / cohesion on various material

Benefits
  • Outstanding section quality with consistency
  • One-week turnaround time on new knives
  • Start-up technical assistance through large network of users
  • Unconditional guarantee
  • Productive versus hand-grinding
  • Easily cuts through a variety of densities
  • Cost-effective
Specifications
Recommended for: Hard tissue, bone or material embedded in MMA or GMA, frozen
Material 100% solid high grade tungsten carbide
Cutting edge  16 cm
Blade height 3.44 cm
Cutting angles available 35º, 45º, 55º
Section thickness 1-15 microns
A special cryo tungsten carbide knife is available for cryo applications. For ease of handling and use of the full 16mm edge length, the tungsten carbide blade is embedded in a steel holder. This knife is available in both C & D profiles.
Disposable Tungsten Carbide
Successful Applications
  • Fibers in GMA - 3 microns
  • Animal Tissues on Cryostat - 3 microns
  • Cartilage in Paraffin - 5 microns
  • Decalcified Bone in Paraffin - 5 microns
  • Renal Biopsies in GMA - 1.5 micron
  • Skin on Cryostat - 7 microns
  • Paint Samples in GMA - 3 microns
  • Eucalyptus Root in GMA - 1 micron
  • Neurotox Studies in GMA - 1 micron
  • Tumors in GMA - 2 microns
These blades are appreciated by technicians looking for improved productivity and versatility when sectioning plastic. They feature a low angle (35°) for best quality sections of soft samples. Try them for your toughest cryostat sectioning problems, too! DDK maintains an inventory of starter kits and replacement blade packs for immediate shipment, and offers start-up assistance through a network of users.
Triangular Tungsten Carbide
Having a consistent size and tip angle, these knives successfully replace glass and razor blades in a variety of sectioning and block facing applications. The sharp edge lasts through thousands of sections, eliminating mid-procedure knife changes and frequent reordering while enhancing productivity. These knives fit tightly in the glass knife holders of most microtomes, are easy to handle and reduce the risk of cuts to your hands.
 
For Epon & epoxy embedded tissue and material, use this knife for routine histology and difficult jobs such as:
  • Serial sectioning of the cornea, mouse brains, fish embryos
  • Ovaries / Fish eggs
  • Spinal cords
  • Skin biopsies
  • Section scouting
  • Bone marrow biopsies and mineralized bone
  • Polyester film and hard materials
  • Lymph nodes
  • Trimming / block facing
  • Decalcified bone
Specifications
Cutting edge length:
.38 in. (9.6 mm)
Blade height:
1.0 in. (25.4 mm)
Blade thickness:
.38 in. (9.6 mm)
Cutting angle:
40°
Material: 
100% high grade, solid Tungsten Carbide
Section thickness:
2-15 microns

DDK Resharpening Services
Delaware Diamond Knives offers a resharpening service for all tungsten carbide knives. We take your knives and restore the edges to the same quality as new with our specialized equipment and procedures. All angles are returned to factory specifications so all knives perform the same at the microtome. The aesthetic characteristics of your knife are also considered. Corrosion of tool steel parts is brushed out, epoxy joints are repaired and your box is cleaned and repaired if necessary. Each tungsten carbide knife, new or resharpened, is marked with a serial number and data regarding its characteristics is stored in our computer. Should there ever be a question about your knife's performance, give us a call. We have the information and experience necessary to answer your questions and help you with your problems.

Due to the nature of the Triangular Tungsten Carbide Blade, with their high utility relative to cost, it is uneconomical to resharpen. Replacement blade packs are offered at attractive prices relative to the cost, time and space required to produce quality glass knives.
 
Unconditional Guarantee
All of Delaware Diamond Knives products are completely guaranteed. If for any reason you are unhappy with the product you receive, let us know. We will resolve the problem by repair, replacement or refund in a prompt and helpful manner.