Hi reikimaster
Marples bench chisels are nice to have but they do take alot of work and are only as good as the user...it's hard to get the hole true and in the right place every time..
I would suggest getting one of the items below, one for your drill press or one of the stand alone type...
They can be use in many ways ,,, e.g. inplace of round doweling jobs,,, plus you can rip your own sq.dowel pins on the table saw....
I have two, one from HF and one from Grizzly, I do like the Grizzy one just a little bit more than the HF one, it comes with many rings to fit just about any drill press..
MORTISING MACHINe
http://www.harborfreight.com/cpi/cta...emnumber=35570
Mortising Attachment Kit
http://grizzly.com/products/Mortisin...ment-Kit/H7789 http://grizzly.com/products/1-4-Prem...-Chisel/T10016 http://www.grizzly.com/catalog/2008/Main/120