Forstner Extension bar shanks are available in two sizes, to suit Planet's long series saw tooth forstners:
3/8" collar /200mm long Forstner Extension Bar. For sizes 3/8" to 2"
1/2" collar /280mm long Forstner Extension Bar. For sizes 2 1/4" to 4"
Long series sawtooth Forstner cutter
Long series forstner bit (mm), sawtooth pattern, particularly suited for cutting down the grain. Long series - all sizes are a minimum of 150mm long, will produce over-lapping holes, resharpenable.
Long series sawtooth Forstner cutter
Long series forstner bit (inch), sawtooth pattern, particularly suited for cutting down the grain. Long series - all sizes are a minimum of 150mm long, will produce over-lapping holes, resharpenable.