This product is easy to use. This product is highly durable This product is manufactured in China 18 long, 1/2 diameter, .370 shank Hole in flute
IRWIN Drill Bits
Irwin 39108 1/2-Inch by 18-Inch Installer Twist Drill Bit
IRWIN 1890945 Flexible Installer Drill Bit with Palestine
IRWIN Black Drill Bits
Irwin 39108 1/2-Inch by 18-Inch Installer Twist Drill Bit
Full Line Catalog - eBait
Des Moines Iron by Sutherland Companies - Issuu
IRWIN Black Drill Bits
Irwin 39108 1/2-Inch by 18-Inch Installer Twist Drill Bit
IRWIN 1890945 Flexible Installer Drill Bit with Palestine