10-piece M35 HSS gold and cobalt high speed steel twist drill set 3.5 mm x 70 mm for drilling stainless and hard steel, cast iron, copper, aluminum, wood and plastic

Professional quality item with wide range of uses: M35 high speed steel drill bits with 5% cobalt for drilling stainless steel and reinforced steel materials. They can also be used for drilling metals and other materials such as cast iron, copper, high temperature alloys, titanium alloys, aluminum, hard plastics and woods, etc.

Premium materials: M35 high speed steel with 5% cobalt. Durable and solid for longer service life. Drill bits are suitable for drilling heavy-duty metals including stainless steels, Cr-Ni and acid-resistant special steels.

Heat resistant: High speed steel twist drill bits with cobalt should be used at 1,500 rpm or more for maximum efficiency. The straight shank provides a firm, precise grip and is compatible with standard chucks and regular round collets.

Turned Design and Performance: Precise 135° slotted tip, gold oxide finish and straight round shanks. Prevents spillage, removes chips and particles faster. Totally precision ground product which ensures chips can move easily.

Easy Storage and Use: 10pcs M35 Cobalt Steel Twist Drill Bit Set - 3.5mm Drill Diameter - Flute Length: 39mm - Total Length: 70mm. Set of 10 pieces, packed in a plastic box for easy use and storage.

Features:

High speed steel surface, titanium coated.

M35 HSS with 5% cobalt provides hardness for wear resistance and drilling ability.

135 degree slotted tips are self-centering for reduced thrust and easier penetration.

Suitable for drilling stainless steel, hard steel, metal, cast iron, copper, aluminum, plastic and wood.

Ideal for DIY, household and construction/general engineering.

Specification:

135° slotted tip and twist design: Increases cutting speed by self-centering and prevents wandering, removes chips and particles faster

Material: M35 HSS with 5% cobalt

Angle tip: 135 degrees

Flute Type: Spiral

Shank Type: Straight Shank

Size: 3.5mm x 70mm

Drill Diameter: 3.5mm

Flute Length: 39mm

Total Length: 70mm

Professional and Widely Used:

Our M35 Cobalt HSS Jobber Twist Drill Bit is more suitable for drilling hardened materials such as steel, stainless steel, copper, cast iron, high temperature alloys, titanium alloys, hard plastics and woods, and can also be used for drilling softer materials such as wood, plastic and aluminum, etc.

Wide Application:

Portable Equipment

Suitable for lithium drills, hand drills, impact drills, etc.

Flat Drilling Equipment

Suitable for bench drills, magnetic drills, Drilling machines, milling machines, machining centers, etc.

Included in delivery

10 x 3.5 mm HSS cobalt 5% jobber twist drills

Notes: The service life of twist drills can be significantly extended by using coolant.