Use on timber to drill a countersunk hole for a screw which is then plugged uses a plug/pellet made using the plug cutter. Recommended that plug cutters are used in a pillar drill.
Trend C002X14TC 1/4" Two Flute Cutter 4.0 x 11.1mm
Trend 4612X14TC 1/4" Bearing Guided Ovolo & Round Over Router Cutter 4.8mm Radius
Trend 33/60X1/4 Arbor 1/4" Shank
Trend Snappy 3 Piece Drill Bit Guide Set
Trend Snappy HSS Festool Centrotec Drill Bit Guide Size 10
Trend SNAP/DB964/10 Snappy Spare Drill Pack