This is directly from the website of 'The Toolpost' which I think is the only supplier of the Munro system.
I have several deep hollowers but since I acquired the mega 2 ( with the 5/8 shaft) I use it a lot more than any of the others.
Having said that, of course the others have their uses where the Rolly may be too big or I need a small shaped carbide scraper,
and, like all deep hollowing tools which use the shielded ring principle, regardless of source, it is really designed for use in wet end-grain. Whilst it will perform very adequately in dry timber too, it is at its least effective when used on side grain - where the grain runs across the lathe bed, as in bowl turning. It will still cope with this abuse T
The Munro system has been extended and enhanced over the years so that it now comprises both the original (though modified) large system with its 12 mm cutter as well as the smaller 'Mini' system with the 8 mm cutter, to which have now been added shear scraper heads for the ultimate in hollowing versatility. The picture for complete tools is completed by the unhandled variants of the standard tools. Along with those go the various spare cutters and blades, the sharpening jig and various spare and extension components. We have tried to append descriptions that enable you to identify the parts you might need if you already own a Rolly tools and are looking for spares.
1) The Mini Hollower uses an 8mm diameter cutter and is supplied, as standard with a 1/2" shaft (though options are available).
2) The Mega Hollower (the original Rolly tool), like the Mega 2 uses a 12mm diameter cutter and is supplied, as standard with a 5/8" shaft.
3) The cutter for the earlier Mega tools has a tapped hole in it for the securing screw, which passes through a plain drilled hole in the cutter platform.
4) Conversely, the cutter for the later (Mega2) versions has a plain hole and the securing screw is screwed into a threaded hole in the cutter platform.
Rolly Munro Mega 2 Hollower, with handle & 12mm cutter. (inc 5/8 in shaft, links, 2 cutters, jig) £161.19
Rolly Munro Mega 2 Hollower, unhandled, with 12mm cutter. (inc 5/8 in shaft, links, 2 cutters, jig) £136.08
Munro Mini Hollower
Description Price*
Click to buy
Rolly Munro Mini Hollower, with handle, 8mm cutter (inc 1/2 in shaft, links, 2 cutters, jig) £120.33
Rolly Munro Mini Hollower, std. (inc 8mm cutter, head, link & 1/2 in shaft only; unhandled) £72.90
Rolly Munro HD Mini Hollower, unhandled. (inc 5/8 in shaft, links, 2 cutters, jig) £113.40
Rolly Munro HD Mini Hollower on 5/8 in shaft (8mm cutter, link, 5/8 Shaft only: unhandled) £79.38
Replacement Cutters for Mega and Mini Hollowers
Description Price*
Click to buy
Rolly Munro 12mm HSS cutter pack for Mega 2 Hollower, pack of 2 incl. screw and key (Cutter has plain bore) £10.06
Rolly Munro 12mm TCT cutter for Mega 2 Hollower, with screw and key (cutter has plain bore) £13.77
Rolly Munro TCT 12mm single cutter for original Mega Hollower, (Uses Phillips head retaining screw: Cutter has threaded bore) £13.77
Rolly Munro 12mm HSS cutter pack for original Mega Hollower, pack of 2 (Uses Phillips head retaining screw: Cutter has threaded bore) £10.06
Rolly Munro 8mm HSS cutters for Mini Hollower, pack of 2 c/w Screw £9.33
Rolly Munro 8mm TCT cutter for Mini Hollower, packed singly, inc screw & key £11.83
Hope that answers your question on at least the Rolly Munro system :roll: :roll: :roll:
John. B
