The best replacement for countersink is counterbore.

The best alternatives to countersink are rated as following:
★★★★★  counterbore
★★★  chamfer
★★  countersunk
★  dimple
★  countersink

Your alternative for countersink is not listed? Suggest!
Speaking about countersink, one probably shouldn't forget about drill bit.

Other search terms related to countersink and their ratings are:
★★★★★ drill bit
★★★★ clearance drill
★★ regular drill bit
★★ pilot drill
★ bit
★ drill
★ counterbore
3\/16-inch drill bit
You have in mind a companion for countersink and it is not yet here? Propose!



Google Trends

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countersink
counterbore
chamfer