R7 Single Groove Handheld Clay Extruder – DiamondCore Tools
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R7 Single Groove Handheld Clay Extruder


The R7 Single Groove Handheld Clay Extruder easily slices through a slab of clay so you can make a handle shape with a single cut. Ideal for hand-builders, the R7 Single Groove Handheld Clay Extruder is also loved by throwers and anyone looking to achieve a consistent shape and adjustable thickness in their handles or feet.


  • Slices through a slab to make a handle shape with a single line down the middle
  • Angled, stainless-steel blade leaves clean edges and pulls through clay effortlessly
  • 4 3/8-inch (11 cm)-long hardwood handle
  • Great for feet, handles and more 
  • Adjustable-depth ski controls the thickness of the cut
  • Thumb screw allows for easy ski adjustment
  • Max approx. blade width 22 mm X height 13 mm
  • Min approx. blade width 20 mm X height 6 mm
  • Wood grain may vary


  • Make feet for slab-built pieces
  • Ideal for hand-builders and useful for throwers
  • Consistent shape and adjustable thickness
  • So easy to use; avoid all that pulling
  • Works on a variety of clay types
  • Always-sharp stainless-steel blade won’t rust or shatter 
  • A variety of basic and intricate shapes are available


  • HCE DEC: Our Decorative Shapes handheld clay extruder set: R7, R8 and R9
  • DRT SET: A complete Diamond Set of our R1-R18 handheld clay extruders


  • Not designed to be used with extremely wet or sticky clay
  • Use all safety precautions
  • Keep out of the reach of children


For best results, use these foot and handle-making tools when the clay is not extremely wet or sticky. The clay tool blade should be clean and dry. Ideally, pull the extrusion up and out as it is being formed or fold back the sides of the slab so the extrusion pops up and out.