Timco 4.5 x 80mm HSS Jobber Drill Bit, Cobalt M35 (HSSCO45)

Pro grade drill bit designed to last

Jobber drill bit from a trusted brand Timco, manufactured from M35 grade steel for enhanced durability and performance. 

Engineered with M35 high-speed steel (5% cobalt) allows superior durability for exceptional wear resistance, heat resistance for tough metal drilling, and longer tool life.

Combined with a high performance 135° split point tip that eradicates the need to pre-drill or centre punch. 

The cobalt drill bits are designed specifically for precision drilling in harder materials like stainless steel, plastics, steel, aluminium, and non-ferrous metals.

This makes them a popular choice for professional tradespeople and DIY enthusiasts who demand a reliable performance and accuracy every time.

HSS Jobber Drill Bit Specification

• Size: 4.5 x 80mm
• Working length: 47mm
• Material: M35 grade steel
• Quantity: 1 drill bit
• Conformity: DIN 338
  

Part of a larger range of drill bits from Fusion Fixings at great prices!

HSS Jobber Drill Bits Frequently Asked Questions

Can M35 grade steel cobalt drill bits be used to drill stainless steel?

Yes, M35 cobalt drill bits are designed for drilling stainless steel and other alloy metals. Their 5% cobalt alloy helps them to maintain hardness at higher drilling temperatures, making them ideal for metalworking applications.

What is the difference between cobalt drill bits and standard HSS drill bits?

Cobalt drill bits are manufactured from high-speed steel with cobalt, which gives them greater heat resistance and improved performance when drilling tougher metals. Standard HSS bits are suitable for general-purpose drilling.

Do I need cutting oil when using cobalt drill bits?

Using cutting oil or a suitable metalworking lubricant is strongly recommended, particularly when drilling stainless steel. It helps reduce friction and heat build-up, and protects the cutting edge which prolongs the drill bit lifespan.

Can M35 cobalt drill bits be used on aluminium and mild steel?

Yes, TIMCO M35 cobalt jobber drills are suitable for a range of materials, including aluminium, steel, stainless steel, non-ferrous metals and plastic.

Can cobalt drill bits be sharpened once they become blunt?

Yes, cobalt drill bits have cobalt alloyed throughout the steel rather than applied as a surface coating. This means they can be resharpened without removing their cobalt content or losing their underlying heat-resistant properties.

What does M35 mean on a cobalt drill bit?

M35 is a grade of high-speed steel containing approximately 5% cobalt. This alloy composition improves the drill bit's ability to withstand heat and maintain its hardness during use.

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