Twist drill overlong L with straight shank
Twist drill L HSS - Type N
High-performance deep hole twist drill according to
DIN 1869 with cylindrical shank, type N for materials
up to 900 N/mm2 strength.
Large model for large drilling depth.
High-speed steel for drilling in structural steel,
cast iron, non-ferrous metal and aluminium.
Cross grinding to DIN 1412 C for tough and hard
materials, castings and forged workpieces. Good
centring, low feed force, good chip
removal due to chip separation, resistant to impact.
Tip angle 118° for normal-strength materials.
Twist angle 25° to 30° for hard materials with short to average
chipping. Clockwise helix.Twist drill L HSS Co5 - Type N
High-performance deep hole drill according to DIN 1869
with cylindrical shank, type N for materials
up to 1,100 N/mm2 strength.
Top model for large drilling depth.
High-speed steel with 5% cobalt for
drilling in tempered and tool steel, stainless steel, structural steel,
cast iron, non-ferrous metal and plastic.
High toughness and very good heat resistance.
High resistance to breaking thanks to reinforced drill core.
Cross grinding to DIN 1412 C for tough and hard
materials, castings and forged workpieces. Good
centring, low feed force, good chip
removal due to chip separation, resistant to impact.
Tip angle 128° for hard materials.
Twist angle 39° for tough materials with easy chip removal.
Clockwise helix.

Please write an or call +43 7752 80881.
Product Manager
Thomas Kubinger

Versions and variants
Twist drill overlong L with straight shank






















































