Make the same highball every time, straight from a slab. The Highball Vessel Slab Cutter Set is a wall cutter and a base cutter made to fit each other exactly. Press both through a rolled slab, wrap the wall round the base, and you have a straight-sided highball with no templates, no measuring and no trimming the wall to fit.

Every piece is cut to the same size, so every highball comes out the same and a set matches. Ideal for potters who value consistency, speed and accuracy in their slab work.

Cut size (wet clay): a wall piece about 220 × 131 mm and a base 79 mm across, from a 5 mm slab.

Wrap the wall round, stand it on the base, and it fires to a highball 66 mm across the rim and 120 mm tall, holding about 297 ml to the brim (in a clay that shrinks 12%).

Fired Size by Clay Shrinkage

Clay shrinkage	Across	Height	Holds (to the brim)
8%	69 mm	125.5 mm	339 ml
12%	66 mm	120 mm	297 ml
16%	63 mm	114.5 mm	258 ml

Your clay's data sheet gives its total shrinkage, from wet to fired. Sizes are outside measurements; capacities are worked out from the design, filled to the brim.

Slab Thickness

Made for a 5 mm slab. A 4 mm or 6 mm slab still works: with 4 mm the pot comes out about 1 mm narrower across the outside and holds about 3% more; with 6 mm it's about 1 mm wider and holds about 3% less.

What's in the Set

☑️ Wall cutter – cuts the wall, about 220 × 131 mm
☑️ Base cutter – cuts a 79 mm disc

How to Make It

1. Roll a slab 5 mm thick (guide strips keep it even).
2. Cut the wall and the base.
3. Score both ends of the wall.
4. Brush slip onto the scored ends.
5. Wrap the wall round and press the seam together.
6. Score the base where the wall will stand.
7. Slip the scored ring.
8. Stand the wall on the base and press a thin coil into the inside corner.
9. Trim the base flush with the wall.
10. Smooth, dry slowly and fire.

The step-by-step pictures show each stage. Score every join, and slip it, so it holds in the kiln.

Need a Different Size?

Design your own pot, any size that fits our printers, in the Custom Single-Wall Vessel Slab Cutter Designer. You choose the slab thickness, clay shrinkage, height, rim, base and wall angle.

Clay Slab Cutter Benefits

☑️ Crafted from durable, washable bioplastic for long-lasting use
☑️ Sharp single-edge design creates clean cuts
☑️ Overhanging grip makes removal easy after pressing into clay
☑️ Compatible with pottery clay, ceramic clay, polymer clay, and other soft, cuttable materials
☑️ Packaged in eco-friendly cardboard for sustainable shipping

General Product Specs

☑️ Made of grey PLA bioplastic
☑️ Cutters are 15mm high from edge to top
☑️ Designed for a 5mm slab and a butt-joined seam