2051-7.80, 7.8mm, HSS Cobalt TiAlN Coated Blue Band Stub Drill

Description: HSS Cobalt TiAlN Coated Blue Band Stub Drill

Brand: Bordo (Colour Band)

Material: High Speed Steel (HSS) Cobalt

Diameter: 7.8mm

Flute Length: 37mm

Overall Length: 79mm

MPN: 2051-7.80

Feed Per Revolution: 0.14mm

Cutting Speed Nickel-Pure: 10-15 m/min

Cutting Speed Stainless Steel-Austenitic: 10-15 m/min

Cutting Speed Stainless Steel-Free Cutting: 12-22 m/min

Cutting Speed Stainless Steel-Martensitic: 12-18 m/min

Cutting Speed Titanium-Pure: 20-32 m/min

Cutting Speed Titanium-Alloy: 6-12 m/min

Quantity Per Package: 1 piece

Description

7.8mm HSS Cobalt TiAlN Coated Blue Band Stub Drill
Bordo Metric Blue Band HSS-Co TiAlN Coated Stub Drills for Stainless Steel.
DIN1897
Multi-faceted point with two helical flutes with 35 degrees of helix angle.
The machining of stainless steels is difficult due to its work hardening properties, toughness and poor thermal conductivity, which places high demands on the cutting tools.
They are designed primarily for machining operations in lathes (screw machines) but can also be used in manual hand held drills.
The Blue Band – Stainless Steel – Series has been specifically designed to suit these difficult machining requirements.
TiAlN coating increases tool surface hardness to 87Rc.
For machining materials with Hardness < 350 HB : Tensile Strength <1250 N/mm2.