For sales is one lot of 10 pcs thread repair kit: insert springs.
Welcome to Toolingstation, website that has plenty of low price engineering items. Long term ebay seller.
Toolingstation is an Australia based supplier of taps, dies, drills, endmills, milling cutters and assorted engineering toolings and supplies (result of Google's search)
Welcomed to ebay shop -- toolingstation
Combined postage provided