Wondrous item, rare (requires attunement) 

The chisel has 3 charges. While holding the chisel, you can use an action to magically embed the chisel in a stone surface or object and expend 1 charge to cast the stone shape spell. The chisel regains all expended charges daily at dawn. 

Ultimate Tool. If you are also attuned to Svarog’s Will, you can use the chisel to cast stone shape on any nonmagical object of Large size or smaller, or on a section of material no more than 10 feet in any dimension, even if the object is not made of stone