BORDO Black Finish HSS Jobber Drill Fractional Set
Bordo Black Knight M2-HSS Twist Drills.
ANSI B94-11
118° Split Point (crankshaft point)
Split point is self centering and reduces the need for end thrust.
Friction at workpiece is reduced.
118° point angles are ideal for use in materials such as mild steel and cast iron.
The 118° point creates easily controlled chips which are wide and thin.
Black Finish Twist Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating.
This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life.
Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
Bordo Metric Green Band HSS-Co TiN Coated Twist Drills for Carbon Steel.
DIN338
130° split point with two helical flutes with 33 degrees of helix angle.
The machinability of different carbon steels is as varied as their properties. Soft-tough construction steels place a unique set of demands on the tools.
The Green Band Series of drills and taps have been developed specifically for this range of steels.
For machining materials with Hardness < 250 HB : Tensile Strength <900 N/mm2.
(0 reviews)
Add to Quote
This product has multiple variants. The options may be chosen on the product page
One piece solid core design is significantly more durable than the conventional two piece design that utilises a hex sleeve on a standard round drill bit.
Specifically engineered for use in impact drivers these bits are also fully compatible with conventional rotary drills.
135° split point delivers a precision start and prevents bit wander for fast, accurate holes.
Premium quality M2 HSS ensures extreme performance and long bit life.
1/4″ hex shank facilitates fast tool loading in cordless impact drivers and quick change adaptors.
(0 reviews)
Add to Quote
This product has multiple variants. The options may be chosen on the product page
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.
(0 reviews)
Add to Quote
This product has multiple variants. The options may be chosen on the product page