Brass Taps with Tapered Thread

Hole size 13mm Thread goes from 12.5mm to 13.5mm = $30.00
Hole size 16mm Thread goes from 15mm to 17mm = $35.00
Hole size 18mm Thread goes from 16mm to 19mm = $45.00
Hole size 24mm Thread goes from 22.5mm to 25.5mm = $50.00