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Hss Step Drill Bits
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source: Amazon
Metabo HSS-Co drill bit set 19-piece (627157000)
19-piece set with cylindrical HSS-CO metal drill bitsCobalt-alloy version with bronze coatingSuitable for drilling in steel, stainless steel, cast steel, non-ferrous metals & plasticsAlso for special alloys up to 1100 N/mm² tensile strengthDrill diameters: 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mmCylindrical shank mountingIncludes metal case
£27.89

Silverline Titanium-Coated HSS Step Drill 4 - 26mm
The Silverline Titanium-Coated HSS Step Drill 4-26mm is the professional’s choice for precision drilling in sheet metals, alloys, and plastics up to 4mm thick. Engineered with a self-starting tip, this step drill eliminates the need for pilot holes, delivering clean, burr-free holes ideal for automotive, HVAC, and a variety of DIY projects. Its robust HSS core, enhanced by a titanium coating, ensures superior durability, reduced friction, and a significantly extended tool life, even during prolonged use.Featuring clearly marked 2mm graduations, users can achieve accurate depth control and precise hole sizing from 4mm up to 26mm. The 12mm precision-machined shank fits securely in standard drill chucks, allowing quick and stable bit changes for greater efficiency on the job. The titanium coating minimises heat buildup, while laser-etched markings stay visible project after project.For best results, simply secure in your drill chuck, align the self-starting tip at a right angle to your chosen material, and begin drilling at a low speed, increasing as needed. When working with metals, using a cooling lubricant is recommended to further reduce heat and prolong the bit life.Always observe safety precautions by wearing goggles and gloves. Avoid excessive pressure and only use on intended materials — not suitable for masonry, hardwood, or thick metals. Store in a dry, cool place to prevent corrosion and keep out of reach of children. Choose the Silverline Titanium-Coated HSS Step Drill for reliable, professional-grade results every time.
2 days
£14.32
Shipping: £3.99
Joybuy

Punk 5.5mm HSS-g Drill Bit (10 Pack) 844306
PUNK HSS-G Drill Bits are fully ground hardened with a split point tip, which reduces the need for pilot holes up to 10mm diameter. HSS-G treatment strengthens the bit to deliver up to 40% faster drilling than standard rolled drill bits. Precision ground offering up to 40% faster drilling than standard HSS drill bits Self centring 135° split point tip reduces the need to pilot up to 10mm diameter M2 fully ground material Anti-corrosion salt spray tested Suitable for alloy, non-alloy, steel, cast iron, non ferrous metals and hard plastics
£14.08
Shipping: Free
Travis Perkins

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

NONE HSS Drill Bit M35 Cobalt High Speed Steel Twist Drill 1mm-13mm Tool Set Accessories For Metal Stainless Steel Iron Drilling Tool 1005009067685142
HSS Drill Bit M35 Cobalt High Speed Steel Twist Drill 1mm-13mm Tool Set Accessories For Metal Stainless Steel Iron Drilling Tool
£3.63
Shipping: £3.46
AliExpress UK

DEWALT EXTREME 2 HSS-G Drill Bit Set (29 pc.), DT7926-XJ 0M-62H0-7DJJ
VERSATILE & DURABLE: This comprehensive 29-piece HSS-G metal drill bit kit is engineered for precision drilling in alloyed and non-alloyed steel, wood, and plastic, featuring enhanced wear resistance, a lightweight storage case for easy organization, and a magnetic drive guide for superior control—making it the ideal choice for metalworking, carpentry, and general fabrication tasks. APPLICATIONS: Ideal for drilling alloyed and non-alloyed steel with a tensile strength up to 900 N/mm², as well as for precise drilling in steel sheets and thin materials. Also suitable for use on wood and plastic, making it versatile for metalworking, carpentry, and general fabrication tasks. RESISTANCE AND DURABILITY: HSS-G metal drill bits are engineered from high-speed steel and precision ground for enhanced strength, offering excellent resistance to wear, heat, and deformation during demanding drilling tasks. LIGHTWEIGHT CASE: Supplied in a durable plastic box that is lightweight, easy to carry, and designed for practical storage and organization of the drill bits, making it convenient for transport and everyday use. EASY IDENTIFICATION: The interior of the case features clearly marked drill bit sizes, enabling quick and accurate identification and selection for efficient workflow. INCLUDES: Comprehensive set of 29 high-speed steel ground (HSS-G) metal drill bits, ranging in sizes from 1mm to 13mm: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.3mm, 3.5mm, 4mm, 4.2mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, and 13mm, suitable for a wide range of precision drilling tasks in metalworking applications. BUILT FOR DEMANDING PROFESSIONALS: For 100 years, DEWALT has been the brand of choice for demanding professionals who require tools that are innovative, tough, and built to last. With a legacy of excellence and a future of continued innovation, DEWALT tools are engineered to deliver superior performance and durability, ensuring you can tackle the most challenging tasks with confidence and precision. BUILT FOR DEMANDING PROFESSIONALS: For 100 years, DEWALT has been the brand of choice for demanding professionals who require tools that are innovative, tough, and built to last. With a legacy of excellence and a future of continued innovation, DEWALT tools are engineered to deliver superior performance and durability, ensuring you can tackle the most challenging tasks with confidence and precision., Weight: 0.895 Pounds, Manufacturer: DEWALT
£71.40
Shipping: Free
Amazon Marketplace - Prime Delta

Unbranded Step Drill Bit Step Bit Set Industrial High-Speed Steel Helical Cutting Tools For PP Wood Aluminum Stainless Steel Blue
Tough and Safe: Wear-resistant high-speed steel build provides long tool life and dependable performance in demanding projects, with the step drill...
£75.75
Shipping: Free
OnBuy

NONE 13pcs/set M35 Cobalt Twist Drill Bit Set,1/16~1/4'',Drilling Hole Tools,HSS-Co Drill Bit Set for Stainless Steel Metal Iron&Wood 1005010404081292
13pcs/set M35 Cobalt Twist Drill Bit Set,1/16~1/4'',Drilling Hole Tools,HSS-Co Drill Bit Set for Stainless Steel Metal Iron&Wood
£9.79
Shipping: Free
AliExpress UK

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

Silverline Titanium-Coated HSS Step Drill 4 - 22mm
The Silverline Titanium-Coated HSS Step Drill 4-22mm delivers precise, professional results for anyone working with sheet metals, alloys, or plastics up to 4mm thick. Featuring a self-starting design, this drill eliminates the need for pilot holes, offering quick and accurate drilling from the very first use. Crafted from high-speed steel with a durable titanium coating, it delivers enhanced longevity, reduced friction, and reliable performance even during prolonged or demanding jobs. The bit includes clearly marked 2mm graduations, enabling precise control over hole size and depth for projects requiring exact results. Its 12mm shank ensures a secure fit with standard drill chucks, maximizing compatibility and stability during use. The Silverline step drill produces clean, burr-free holes, making it ideal for tasks in HVAC, automotive, or general DIY settings. Simply insert the shank, align the tip perpendicular to the work surface, and begin drilling at a low speed—gradually increasing as needed. For metals, cooling lubricants are recommended to help prevent overheating and extend tool life. Always wear appropriate safety gear, avoid applying excessive pressure, and store the drill bit in a cool, dry place. Not recommended for masonry, hardwood, or thick metals. Perfect your projects with Silverline’s reliable, precision-engineered step drill.
2 days
£12.19
Shipping: £3.99
Joybuy
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