Irwin 6X Blue Groove Bits are the fastest drilling wood bits available.
They cut extremely clean and accurate holes with their specially designed tri flute heads and cutting spurs. 
The set includes the six most popular sizes of bit (16, 18, 20, 22, 25 & 32mm). 
Heavy-duty carry case for safe storage.
Also supplied with the new XP retractable blade Trimming Knife.