tanka

sa-ṭańka-śikharāḥ having edges with points as sharp as stone picks; SB 8.10.46
tańkā rupees; CC Adi 12.32
ṭańka-chaṭābhiḥ by chisels; CC Antya 1.167
ṭańka like the chisel; CC Antya 16.52