WAX BALL SPRUE 7MM / 250

YE7570250

Fluid metal experiences a contraction upon solidification. The resulting partial vacuum can be compensated by drawing molten metal from the “reservoir”. This was the idea when the sprues were created.

Ball Diameter = 7mm

Supplied as a packet of 250

Also available:

Sprues Blue, Ball-Diameter 4mm, Pkt 250 (YE7540250)

Sprues Blue, Ball-Diameter 5mm, Pkt 250 (YE7550250)

Sprues Blue, Ball-Diameter 6mm, Pkt 250 (YE7560250)

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WAX BALL SPRUE 7MM / 250

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