Locksmith

Also former member of ALOA ,and also Maryland Locksmith Assoc. Still get occasional junk mail from being on member list of ALOA. Have installed many doors and also repaired ,rekeyed and installed many locks.

http://www.handymanjimnoonan.com

Big Bob said:

over my many carpentry years I have installed many lock sets... today at a work day at our church I re-installed a new US Lock deadbolt, that a well meaning church member had tried to install... No instructions,,, but I only read them at 3:30 anyway.. what a pain... are all US Locks ... tune and adjust as you install or start from Scratch?

I don't want to think bad thoughts about anybody.

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A lock installation jig or boring jig makes it much easier to align the holes if someone had worked on a lock before you and the holes are mis-aligned. You can clamp on the jig ,line it up,see what has to be done and then remove just enough material to assure smooth operation of the lock.

MALCO.New.York said:

For the Non-Locksmith, a Jig is a bit of an expenditure. Yes???

But Bot-O-Boy, do they make lock-life simple!!!

Especially if you purchase the PROPER, Commercial/Residential type.

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I agree with you about the expense of the jig. There would have to be a sufficient quantity of lock installations to justify purchase.

I have read about carpenters making there own jigs out of scrap 1x material.They would have to make a "U " or at least an "L" out of the 1X stock drill a 2 1/8" hole for the crossbore at the backset location and have either a pilot hole drilled or a 1" hole for the edgebore. The most popular size jig would probabaly be a 2 3/8" backset for a 1 3/4" door. But with 2 backsets (2 3/8 and 2 3/4) and two thickness for doors 1 3/8" and 1 3/4" , more than one jig would have to be made to install knobs and deadbolts on interior and exterior doors.