1. home
  2. preface
  3. razor parts
  4. blade points
  5. razor identification
  6. the edge
  7. grinds
  8. grinds, why
  9. sharpening introduction
  10. stones
  11. strops
  12. using stones, introduction
  13. blade - stone geometry
  14. first stroke on stone
  15. last stroke on stone
  16. using the strop, introduction
  17. first stroke on strop
  18. last stroke on strop
  19. preparation for shave
  20. numbered shaving paths
  21. face, right side
  22. face, left side
  23. chin
  24. coup de maitre
  25. throat
  26. second over
  27. preface to archives
  28. La pogonotomia I
  29. La pogonotomia II
  30. La pogonotomia III
  31. La pogonotomia IV
  32. the razor I
  33. the razor II
  34. the razor III
  35. the razor IV
  36. the razor V
  37. the razor VI
  38. references
  39. summary
  40. guestbook

     >>> back to NassRasur.com <<<


     All images and text
     ©1998-2003 Arthur E. Boon



























































































Grinds

transverse.jpg


Grind is defined as the transectional geometry of a blade. Blades can be straight grind with a wedge shape, hollow grind with biconcave sides, or transitional grinds. Full hollow grind blades have a belly or ridge which gives the thin metal torsional resistance.

The terms 1/1 and 1/4 hollow grind indicate the degree of hollow grind, but also point to the parts of a full hollow grind blade below and above the belly. The former definition distinguishes different types of razor blades, the latter refers to the successive phases in the production process.

When the blade rests on a flat surface, the sides of a straight grind blade touch the surface. However, only the back and the edge of a hollow grind blade touch the surface. The belly never reaches the surface. These differences between straight- and hollow grind blades are essential for the process of sharpening.

grinds.jpg