Kemper - Fettling Knives

Fettling Knives

hard fettling
SKU: 34851
MPN: F97
hard fettling
List: $9.39
$7.07
SAVE 24%
soft fettling
SKU: 72891
MPN: F96
soft fettling
List: $9.19
$6.90
SAVE 24%

Trim cast greenware and carve clay with bendable or spring-tempered blades

Ceramic work demands different tools than other sculpting media, and these fettling knives address that reality directly. The soft steel blade bends to match curved surfaces, wrap it around a vase shoulder or into a bowl's interior to remove seam lines without gouging the clay body. Once shaped, it holds that curve through repeated use. The hard-tempered version springs back to straight, providing the resistance needed for controlled carving and precise trimming of pour hole waste.

Both versions feature 4½-inch blades set in smooth wooden handles for an 8-inch total length that balances reach with control. The soft blade excels at conforming to complex greenware geometries where rigid tools would dig in; the tempered blade handles detail work and surface refinement where you need predictable feedback. Keep both on hand, greenware cleanup often requires switching between flexible smoothing and firm cutting as you work around a single piece. These knives handle the specific demands of cast ceramics, from initial mold mark removal through final surface preparation before firing.

PRODUCT INFORMATION

  • 4.5 in. blades for precision trimming
  • Removes pour hole waste and mold marks
  • Soft steel blade bends to desired shape
  • Hard-tempered blade provides spring-like feel
  • Smooth wooden handles ensure comfortable grip
  • 8 in. total length balances control
Ceramics

Ceramics Purchase Guide

Ceramic Materials

Earthenware - Low-fire ceramic fired at 1800-2100°F (cone 06-04). Porous and suitable for decorative pieces. Requires glazing for water resistance.

Stoneware - Mid-fire ceramic fired at 2200-2400°F (cone 6-10). Dense and durable, perfect for functional pottery and dinnerware.

Porcelain - High-fire ceramic fired at 2300-2600°F (cone 8-12). Translucent and extremely strong, ideal for fine art and delicate pieces.

Clay Bodies - Different formulations for specific applications including throwing, hand-building, and sculptural work.

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