An industrial quality general purpose 25 piece jobber drill set suitable for a wide range of steels and supplied in indexing metal case. Manufactured from High Speed Steel (HSS) with a black oxidised finish.

Features and Benefits
• High Speed Steel (HSS) ground flute drills for general purpose use
• Black oxide blue finish coating for bolstered longevity
• Convenient 25 piece metric set ranging from 1 to 13.00mm x 0.5mm to cover board range of uses
• Supplied in an indexed metal case for ease of storage

Contents
• 1mm x 0.5mm (1)
• 1.5mm x 0.5mm (1)
• 2mm x 0.5mm (1)
• 2.5mm x 0.5mm (1)
• 3mm x 0.5mm (1)
• 3.5mm x 0.5mm (1)
• 4mm x 0.5mm (1)
• 4.5mm x 0.5mm (1)
• 5mm x 0.5mm (1)
• 5.5mm x 0.5mm (1)
• 6mm x 0.5mm (1)
• 6.5mm x 0.5mm (1)
• 7mm x 0.5mm (1)
• 7.5mm x 0.5mm (1)
• 8mm x 0.5mm (1)
• 8.5mm x 0.5mm (1)
• 9mm x 0.5mm (1)
• 9.5mm x 0.5mm (1)
• 10mm x 0.5mm (1)
• 10.5mm x 0.5mm (1)
• 11mm x 0.5mm (1)
• 11.5mm x 0.5mm (1)
• 12mm x 0.5mm (1)
• 12.5mm x 0.5mm (1)
• 13mm x 0.5mm (1)

Typical Applications
• Steels
• Cast steel
• Grey cast iron
• Malleable cast iron
• Nickel brass
• Aluminium alloy
• Graphite

Standards
• BS328:Part 1
• DIN 338N
• ANSI B94 -11M

SPKN Milling Inserts

Square Insert

Insert Grade QP40
(P40) Uncoated. For rough medium and finish milling of tough Steels and Stainless Steels including interrupted cutting.

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

Features and Benefits
• Manufactured from high grade tungsten carbide for increased toughness
• Cut 6 double cut improves cutting control and chipbreaks
• Suitable for deburring and polishing applications

Typical Applications
• Deburring
• Polishin
• Cast iron
• Cast steel
• Carbon steel
• Alloy steel
• Stainless steel
• Materials up to HRC65 hardness

Notes
• 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

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.