Simplest approach is via a farm track at S 067 753 A E - permission may be required. Follow the track west for 1km until you reach the woods where the track swings north for about 300m, joining a main forest track. Turn right here and follow the main track for 1km to the summit area, which is covered in masts and associated structures.
An alternative, longer approach with no possible access restrictions is to approach from the SW, starting at the forest entrance at S04317 73045 B A. Follow the meandering track for about 4.5km, keeping left at any junctions, which will take you to the summit area. Linkback: https://mountainviews.ie/summit/636/comment/5395/

Head out the Dunkerrin road from Templemore, about 3 miles out there is cross roads with a sign pointing to the right 'Roscrea 11' . Turn left, go up hill, follow the road til a T junction, turn left then nearlt immediately right and follow that road straight all the way (ignore any turns) til you find yourself on a forestry road with an old ruined farmhouse on your right. We parked there my Corkonian friend and I. We went uphill until we found a tubular gate. We went up this lane til we met a T junction and the top of Kilduff was plain to be seen. Simon3 described it well as cluttered! The views from Kilduff to the west were similar to those from the Devils Bit. Today did not disappoint as Loughderg was silver in the distance and the Aughtys, Keeper and Silvermines free of cloud. Slievenamon way to the south with the Galtees could be seen on the ascent. We headed back the same road but rather then turning left for the tubular gate we kept going straight and kept to the 'main' forestry road. This led us round the western side of the 'Bit and round the south of Little Rock before resting at the round castle. We headed back up towards the 'Bit up to its plateau and its trig. This is where one of the oldest fossils ever found was discovered in the 1990's. Down a cut and onto some boggy terrain before exiting near the 'tubular gate road' just before the gate itself. Down hill to our car and home. A grand walk with some beautiful rich views and challenges to the leg muscles. The sticks came in handy! Unfortunately I have no photo's of the sojourn yet. Linkback: https://mountainviews.ie/summit/636/comment/4134/

About the most interesting thing I saw on my ascent of this hill was when I stopped for lunch and saw that my feet were surrounded by bright orange-coloured fungus. I believe it's called Armillaria, also known as honey fungus. But don't be fooled by the sweet name - apparently it extremely poisonous. Linkback: https://mountainviews.ie/summit/636/comment/23353/

Kilduff Mountain, with its multitude of telecoms towers, is visible from the plateau of Devilsbit Mountain. A flattish place. The easy route south from the summit is on the green road beside the furze (or whin if you are from the North) and then along various boggy tracks beside the forest bottom left in the pic.
The bright coloured conglomerate rock is what makes up the small cliffs on Devilsbit's summit. Linkback: https://mountainviews.ie/summit/636/comment/3118/

I arrived at Kilduff after first visiting Benduff to the north (see my comment for access info). Sheet 59 is reasonably accurate regarding the tracks, so there are no navigational surprises. There are no less than four mast complexes on the summit, which clutters the view somewhat! Linkback: https://mountainviews.ie/summit/636/comment/3889/

Wed 25/9/2013. Once again thanks to Young John for directions to Kilduff . Parked car at ruins of old farmhouse S 071 752 C, climbed this hill via good paths all the way to the mast strewn summit. Nice view towards the Devils Bit and all around. It took 23mins from car to top and a 17mins return journey. Saw no one, except two curious horses in a field beside the path. Linkback: https://mountainviews.ie/summit/636/comment/15198/