APBRmetrics

Of 600 draftees of either round in last 10 years, slightly less than half have played 1000 plus minutes in NBA. Some might get there later. Of those 298, 106 have a Winshares per 48 minutes of .100 or higher or about 36% of the minute qualifiers or 18% of all draftees. (WS/48 being the best overall metric available via BREF's draft finder.) 36 are over .150.

119 minute qualifiers have averaged 10 plus points per game. 66 5 plus rebounds. 63 3 plus assists. 10 have done all 3. 55 have shot 33% or better from 3pt land. Divide by 10 and you have the frequency of such performers in each draft. The median qualifier has played about 24 minutes per game.

The draft class with the most over .100 on WS/48 is the oldest, 2009, with 18 at the moment. The class with the least is 2018 with just 3 so far. More coming.

How many undrafted guys hit those #'s?

About 50 undrafted qualify. 80 in first round. Only 25-30 in second (BRef gave slightly different totals on different queries.). The undrafted pool is bigger than 2nd round but also has about twice the yield.

74% of the qualifiers drafted or not were 6-8 or taller. If you take someone shorter, especially early, you better really think you are right because the odds are against on WS/48. The proportions might be different on BPM, PIPM or RPM. Smaller might tend to help the offense more on other metrics that go beyond the boxscore than shown by WS/48. But they probably do worse on shot defense via RPM than taller guys.