The 4" extruder dies are made of 1/2" HDPE (High Density polyethylene). Which is extremely wear-resistant and completely non-contaminating. The top edge of the die cavity is beveled to compact the clay as it passes through, giving a crisp, more solid extrusion. In the hollow dies, there is a bevel on both the interior and exterior portions under each side of the bracket (which holds the center of the hollow dies) that helps the extrusion to "heal" after is has been cut apart by the bracket. This bracket fits into a slot machined into the top of the hollow die and is held in place by the barrel of the extruder. If a hollow die is mounted in place, the center part of the die is in exactly the right place and the wall thickness will automatically be even all the way around. In general, the walls of extrusions 3-1/2 inches OD or less are 1/4 inch thick, while larger pieces have 5/16 inch walls. We have a selection of stock 4” dies available & custom dies are quickly made and inexpensive.

	925A - Large Coils 3/4", 7/8", 1", 1 1/4"
	925B - 2" Solid Ribbon
	925C - 3" Solid Ribbon
	925D - 1 1/2" Hollow Round
	925E - 2 1/2" Hollow Round
	925F - 1 1/2" Hollow Square
	925G - 2 1/2" Hollow Square
	925H - 1 1/2" Hollow Hexagon
	925J - 2 1/2" Hollow Hexagon
	925DM - Die Mask (Neoprene)
	957 - Stainless Steel Brace

*This Set #925 and Set #915 are included in every Stainless Steel Extruder Pkg.