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Cobalt Metal Drill Bits
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Drill America R Cobalt Drill Bit (Pack of 6), DWDCO Series B00FXHGV94
Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools Round shanks allow use with a wide variety of toolholding systems When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging Manufactured to National Aerospace standard 907
£29.50
Shipping: Free
Amazon

Drill America - DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case (1/16" - 1/2" X 64ths), DWDCO Series B00FXGOMIW
Set of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials Gold oxide finish lubricates the drill bit and provides wear resistance Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging Meets ANSI specifications
£115.88
Shipping: Free
Amazon

Dewalt DT4948 Metal Drill Bit HSS-Co 12.5 x 151 x 98 mm (Pack of 6) 5035048535028
Iron oxide alloy effectively protects against overheating Constantly increasing core diameter in the shaft direction for maximum breaking stability in free hand use Start immediately when setting - no more graining necessary, Weight: 0.256 Pounds, Manufacturer: AmazonUk/3K3AF
£64.01
Shipping: Free
Amazon Marketplace - Verkter GB

Drill America 17.50mm Reduced Shank Cobalt Drill Bit with 1/2" Shank, D/AMMCO Series SF-42960045341
Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools Round shanks allow use with a wide variety of toolholding systems When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging Manufactured to National Aerospace standard 907
£66.34
Shipping: Free
Amazon Marketplace - EGNC LTD

Dewalt DT4941 Metal Drill Bit HSS-Co 9 5X125X81 MM, Pack of 10, 6) B01EWNI5IO
Iron oxide alloy effectively protects against overheating Constantly increasing core diameter in the shaft direction for maximum breaking stability in free hand use Start immediately when setting - no more graining necessary, Weight: 0.355 Pounds, Manufacturer: AmazonUk/3K3AF
£49.75
Shipping: Free
Amazon

Irwin Tools IRWIN Drill Bit Set, Cobalt Alloy Steel, 15-Piece (316015) B0000EI9AZ
Visible clear lid of the drill bit set are desgined for easy viewing of contents Stackable - for convenient travel and storage Accessible - for customizable kits Redesigned tip helps promote long life Three-flatted shank design ideal for keyless chucks.Constructed of M-2 high speed steel helps bit life, Weight: 0.7 pounds, Manufacturer: IRWIN
£51.56
Shipping: Free
Amazon

Sealey Metric Cobalt Drill Bit Set (25 Pieces) - AK4702 3B-4WSR-6F3U
Fully ground HSS with 5% cobalt mAKes these ideal for drilling extra hard materials 135 degrees split point tip enables bits to bite work piece quickly reducing the need for centre mark Drills can be re-sharpened without affecting their performance Supplied in metal storage case Sizes: 1-13 mm in 0.5 mm increments, Weight: 2.9982867632 Pounds, Manufacturer: Sealey
£79.95
Shipping: Free
Amazon Marketplace - KING_TOOLS

Drill Bit Set HSS Cobalt Fully Ground 99pc 15-OGJY-7TQM
135° Split point self-centring tip make for easier penetration 5% Cobalt helps to increase life of drill bit Suitable for drilling high carbon steel and stainless steel Contents Ø1.5 (x16), 2 (x16), 2.5 (x15), 3 (x10), 3.2 (x10), 3.5 (x8), 4 (x8), 4.5 (x3), 5 (x3), 5.5 (x2), 6 (x2), 6.5 (x2), 8 (x2), 10mm (x2) Supplied in a metal storage case FROM A REPUTABLE UK COMPANY – Founded in 1978, Sealey is a large family run business with a vast product range. Trusted by professionals, all Sealey products are thoroughly tested and backed by unrivalled aftersales service.
£68.99
Shipping: Free
Amazon Marketplace - KING_TOOLS

Dewalt DT4938 Metal Drill Bit HSS-Co 8X117X75 MM 10 Pack of 6) B01EWNHZ26
Iron oxide alloy effectively protects against overheating Constantly increasing core diameter in the shaft direction for maximum breaking stability in free hand use Start immediately when setting - no more graining necessary, Weight: 0.32 pounds, Manufacturer: AmazonUk/3K3AF
£53.21
Shipping: Free
Amazon Marketplace - Amazon EU

NONE 3pcs 3-12mm 4-12mm 4-20mm 4-32mm Straight Groove Step Drill Bit Set Titanium Coated Wood Metal Hole Cutter Core Drill Bit Set 1005011790258456
3pcs 3-12mm 4-12mm 4-20mm 4-32mm Straight Groove Step Drill Bit Set Titanium Coated Wood Metal Hole Cutter Core Drill Bit Set
£1.82
Shipping: £1.99
AliExpress UK

UK Drills 25 Piece Cobalt Set, Sizes 1.0mm - 13.0mm, Fully Ground, High Performance Cobalt Steel Drill Bit, Split Point 135 Degrees, For Use On Alloy & Hardened Steel and Cast Iron 70.038
High Performance Cobalt Steel: Crafted from durable cobalt steel with 5% cobalt content, ensuring exceptional heat resistance and longevity. Fully Ground Construction: Precisely ground for smooth and accurate drilling, enhancing efficiency and reducing wear. 135 Degree Split Point: Designed with a 135-degree split point for quick penetration, preventing walking and enabling faster starts. Versatile Application: Ideal for alloy, hardened steel, and cast iron, providing optimal performance on tough materials. Comprehensive Set: Contains 25 bits ranging from 1.0mm to 13.0mm, increasing in 0.5mm increments, for versatile and precise drilling options.
£55.00
Shipping: Free
Amazon Marketplace - UKDrills

Drill America 21.00mm Reduced Shank Cobalt Drill Bit with 1/2" Shank, D/AMMCO Series SF-42960350421
Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools Round shanks allow use with a wide variety of toolholding systems When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging Manufactured to National Aerospace standard 907
£76.99
Shipping: Free
Amazon Marketplace - EGNC LTD

Dewalt DT4938 Metal Drill Bit HSS-Co 8X117X75 MM 10 Pack of 6) B01EWNHZ26
Iron oxide alloy effectively protects against overheating Constantly increasing core diameter in the shaft direction for maximum breaking stability in free hand use Start immediately when setting - no more graining necessary, Weight: 0.32 pounds, Manufacturer: AmazonUk/3K3AF
£47.16
Shipping: Free
Amazon
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