Replacement Machine Heads for Model Series

[buckethead bungler]

Hi there I'm looking to replace the machine heads on one of my model series guitars, however I'd like to consider putting some locking machine heads on.

At Stew Mac they have a set of Schaller Locking machine heads:

http://www.stewmac.com/shop/Tuners/Guitar,_solid_peghead_tuners/1/Schaller_Locking_Guitar_Machines/Pictures.html#details

However it seems to be lacking the screw-hole at the back shown on the Schaller website:

http://guitar-machine-heads.com/hp135055/M6-Locking-Machine-Heads.htm

Are they entirely seperate machine heads or have they been photoshopped out by Stew Mac? If neither of these would retrofit the Model Series guitars, does anyone here know of a locking machine head that would be suitable without the need for drilling?

Thanks.

[dg]

The Planet Waves locking tuners are a drop-in replacement. A while back someone was looking for Schallers and found that the M6 locking tuners come in different types with different screw tab angles, and it would vary from place to place which kind they had. IIRC, Warmoth carried the ones that had the right screw tab angle, so you may want to check their site.