Drill America DWDDL 12 in. High Speed Steel Extra-Long Twist Drill Bit Set, 5-Piece
$73.11
Designed for general-purpose drilling, these extra-long high-speed steel bits provide the reach necessary for deep applications in iron and steel families. The black oxide treatment enhances lubricity and coolant retention, while the spiral flutes ensure efficient chip evacuation.
Drill America DWDDL 12 in. High Speed Steel Extra-Long Twist Drill Bit Set, 5-Piece
Description
Designed for general-purpose drilling, these extra-long high-speed steel bits provide the reach necessary for deep applications in iron and steel families. The black oxide treatment enhances lubricity and coolant retention, while the spiral flutes ensure efficient chip evacuation.
Comprehensive 5-piece set includes 1/4 in., 5/16 in., 3/8 in., 7/16 in., and 1/2 in. diameters.
Extra-long 12 in. overall length provides superior reach for deep-hole applications.
High-speed steel construction offers an optimal balance of hardness and toughness for wear resistance.
Black oxide treatment increases lubricity and creates surface pockets to hold coolant at the cutting edge.
Spiral fluted design facilitates efficient chip evacuation to prevent clogging during use.
Standard 118° conventional point tip is engineered for performance in iron and steel materials.
Straight round shanks ensure compatibility with a wide variety of tool holding systems.
Features a 3 in. shank length and 9 in. flute length for precision drilling.
