Not quite. Max Drift = Windspeed in Knots/TAS in nm per minute. E.g. - 15 kt of wind, TAS 90 kts, Max Drift = 15/(3/2) = 10 deg.
Angular factor is the same as on your wristwatch. 30 off is 1/2, 15 off is 1/4, 60 or more - use all of max drift.
That's the basic drift sorted. Apply 3 times the assessed drift outbound in the hold (up to a max of 45 deg) and the basic drift inbound.....
But there is NO REQUIREMENT to fly a hold on an IMC revalidation unless ATC so direct.