Popular double ended drill bits for fast drilling in aluminium and thin metals.
 
Titanium Nitride coating reduces heat and increase lubricity.
 
GDDC-DED11  -  No. 11 Double Ended Drill Bit (Suits 3/16" Rivet)
GDDC-DED20  -  No. 20 Double Ended Drill Bit (Suits 4mm & 5/32" Rivet)
GDDC-DED30  -  No. 30 Double Ended Drill Bit (Suits 3mm or 1/8" Rivet)
GDDC-DED1/8  -  1/8" Double Ended Drill Bit