Designed with spiral flutes and various lengths and forms to give high quality centre holes that suit most applications. TiN coating on working parts for increased heat and wear resistance, offering a prolong efficient cutting lifespan.

Features and Benefits
• HSS construction for increased durabiluty
• TiN coating for increased heat and wear resistance
• Delivers high quality centre holes in most drilling applications

Typical Applications
• Drilling

Standards
• BS 328 : Part 2 : 1986,
• DIN 333A, ISO 866, ISO 2540, ISO 2541

Heavy duty construction manufactured from HSS and cobalt for increased hardness and durability with 6 flutes for improved cutting performance and chip control.

Features and Benefits
• HHS-Co construction for improved hardness
• 6 flutes for improved chip control and cutting efficiency

Typical Applications
• Countersinking

Standards
• Manufactured to BS 328:Part 5:1983

Series L100 HSS straight shank long series drills are excellent general purpose drills which are designed to drill steels with tensile strength up to 1,000N/mm2, cast steel, grey cast iron, malleable cast iron, nickel brass and graphite.

Features and Benefits
• Manufactured from HSS for improved toughness
• Black oxide coating for greater heat and wear resistance
• Ideal for general purpose drilling

Typical Applications
• Drilling
• Steels
• Grey cast iron
• Malleable cast iron
• Nickel brass
• Graphite

Standards
• Manufactured to BS 328; Part 1: 1986, DIN 340 RN, ISO 494.

Conical Shape.
All sizes are nominal with a 6mm shank unless other wise stated.

Cut Numbers:

Cut 6 - Double Cut.
Crosscut and double cut to improve control and chipbreaks. Manufactured from high grade tungsten carbide for general-purpose use.

Cut 9 - Chipbreaker
Chipbreaker fast stock removal for improved control and reduced chips for use on hard materials, i.e. steel alloy 50RC, 60RC, carbon and cast iron.

Suitable for deburring and polishing of cast iron, cast steel, carbon steel, alloy steel and stainless steel etc.
up to HRC65 hardness.

Please note:
• Work piece and tools should always be steady and well supported.
• Carbide burrs are not suitable for 'milling' large amounts of material, they are for light stock removal and high revolutions 'LOW FEED - HIGH SPEED'.
• Always ensure that at least 70% of the shank length is clamped by the collet or chuck of the tool being used.
• Always ensure that the tool is rated to the recommended operating speed of the burr.