
16CM TUNGSTEN CARBIDE KNIVES
These cost effective knives offer outstanding section quality, easily cutting through a variety of densities with consistency and are unconditionally guarenteed. DDK guarentees a one-week turnaround time on new knives and start-up technical assistance through a large network of users.
Applications | Benefits | |
MMA Sectioning of bone and hard materials | Outstanding section quality with consistency |
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Frozen sections of bone and hard materials | One-week turnaround time on new knives | |
Composites of plastic materials with metal or fiber fillers | Technical assistance through large network of users | |
Arterial stents embedded in MMA | Unconditional guarantee | |
GMA sections of hard tissue | Productive versus hand-grinding | |
Study of coatings / cohesion on various material | Easily cuts through a variety of densities | |
Cost-effective |
TUNGSTEN CARBIDE KNIFE SPECIFICATIONS
100% solid high grade tungsten carbide. Recommended for: hard tissue, bone or material embedded in MMA or GMA, frozen material
Cutting edge | 16 cm | Cutting angles available | 35°, 45°, 55° |
Blade height | 3.44 cm | 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.
Review Cryogenic Sample Prep Section

DISPOSABLE TUNGSTEN CARBIDE KNIVES
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.
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 |

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 Spinal cords Section scouting Polyester film and hard materials Trimming / block facing |
Ovaries / Fish eggs Skin biopsies Bone marrow biopsies and mineralized bone Lymph nodes Decalcified bone |
TUNGSTEN TRIANGULAR KNIFE 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.