Shelf Pin drilling

[mshel]

I had no problem setting up jig (pegboard) to space holes for shelf pins. However, I did have problem with controlling hole depth. I used these stop collars.

Woodworker Supply cheapos

However, in my experience there are worth less than the $2.99 selling price :crybaby2:Sizes aren't marked on collars, they didn't really fit bits, and the set screw didn't tighten much; therefore the collars slipped. What are my fellow NCWoodworkers using to set depth??? I used cordless drill rather than drill press since the workpiece was large.

Thanks in advance,
Sapwood

Roger,

I bought one of the bits as shown it the attached pic. I works good with peg board but you have to enlarge the holes to accept the end of the bit holder.

Mike