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Rawlplug Cobalt HSS Steel Drill Bit 10mm x 133mm | HSSC-100

Product Code: 5906675346144

€12.99
Home Delivery
Click & Collect

Description

  • 10mm cobalt HSS drill bit - 133mm overall length
  • HSS M35 steel with 5% cobalt for heat resistance and durability
  • 135-degree SPLIT POINT tip for accurate centring
  • Ground spiral for clean swarf removal and precise bore
  • Rated for stainless steel, structural steel and non-ferrous metals
  • Manufactured to DIN 338 standard for consistent dimensions
  • Supplied in a rigid plastic storage box
  • Manufacturer warranty: 1 year

Rawlplug 10mm Cobalt Drill Bit for Stainless Steel and Hard Metals

Built for hard metal drilling:

The Rawlplug RT-HSSC-100 is a 10mm cobalt drill bit manufactured from HSS M35 high-speed steel containing 5% cobalt. The cobalt content increases hardness and heat resistance compared to standard HSS, making the bit well suited to drilling stainless steel, structural steel, metal sheet and profiles, and non-ferrous metals. The overall length of 133mm keeps the bit rigid and steady through the cut.

SPLIT POINT geometry for accurate starts:

The 135-degree SPLIT POINT tip uses a double-sided geometry that centres itself on the workpiece without needing a centre punch. This reduces lateral pressure during drilling and minimises wandering, which is particularly useful when starting a hole in smooth or curved metal surfaces. The ground spiral complements the tip by channelling swarf away cleanly and supporting a precise bore through the full depth of the cut.

Consistent dimensions to DIN 338 standard:

The RT-HSSC-100 is manufactured to DIN 338, the dimensional standard that governs shank, flute, and overall length tolerances for jobber drill bits. Compliance with this standard means the bit will run true in any compatible chuck and interchange reliably across a cobalt HSS set of the same range. The bit ships in a rigid plastic storage box to protect the cutting tip between uses.

Shop the Drill Bits range from Heavins.ie, with delivery available across Ireland.

Key Features

HSS M35 cobalt steel - 5% cobalt content improves hardness and heat resistance for extended service life.
SPLIT POINT tip - 135-degree double-sided geometry centres accurately and reduces drilling pressure.
Ground spiral - precision-ground flutes support clean swarf removal and accurate bore diameter.
DIN 338 compliant - consistent dimensions ensure reliable fit in compatible chucks and drill sets.
10mm x 133mm - standard jobber length for versatile use in hand drills, pillar drills, and CNC machines.
Approved materials - rated for stainless steel, structural steel, metal sheet and profiles, and non-ferrous metals.
Plastic storage box - included case protects the cutting tip and keeps the bit ready for use.

Specifications

  • Brand: Rawlplug
  • Model: RT-HSSC-100
  • Drill diameter: 10 mm
  • Overall length: 133 mm
  • Steel grade: HSS M35 (5% cobalt)
  • Point angle: 135Β°
  • Point type: SPLIT POINT (double-sided)
  • Spiral type: Ground spiral
  • Manufacturing standard: DIN 338
  • Compatible materials: Stainless steel, structural steel, metal sheet and profiles, non-ferrous metals
  • Packaging: Plastic storage box, 1 piece
  • Manufacturer warranty: 1 year

What's Included in the Box

  • 1 x Rawlplug RT-HSSC-100 10mm cobalt HSS drill bit
  • Plastic storage box

Shipping & Delivery

We are pleased to offer FREE delivery on orders over €499.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders.

All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.

Delivery Costs to Republic of Ireland are €6.99 for orders Under €499.00

Same Day Dispatch €9.99
Orders placed before 12pm are dispatched the same working day, helping your items reach you sooner. Excludes bulky items.

Large Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for bulky items or €59.99 for extra bulky items to ROI

- We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.

View our full Delivery & Collection information

Returns Policy

Due to our valued customer feedback, we have updated and improved our Returns Policy.

We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase.

View our Full Returns Policy

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Frequently Asked Questions

What metals can this cobalt drill bit cut through?

This cobalt HSS drill bit is rated for stainless steel, structural steel, metal sheet and profiles, and non-ferrous metals. The HSS M35 grade steel contains 5% cobalt, which raises hardness and heat resistance well above a standard HSS bit, making it capable of handling the tougher, heat-generating materials that would blunt or burn out a basic bit quickly.

Why does this cobalt drill bit outperform a standard HSS bit on hard metals?

The 5% cobalt content in the HSS M35 steel increases both hardness and heat resistance, so the cutting edge holds up longer under the high temperatures generated when boring into stainless or structural steel. A standard HSS bit softens and dulls quickly in those conditions. The HSSC-100 also uses a 135-degree SPLIT POINT tip that centres without a punch and reduces lateral pressure, which means less wandering and a cleaner bore from the first contact.

Will this drill bit fit and run true in any standard chuck or cobalt HSS drill set?

Yes. The bit is manufactured to DIN 338, the dimensional standard that governs shank, flute, and overall length tolerances for jobber drill bits. That means it will run true in any compatible chuck and interchange reliably across a cobalt HSS set of the same range. It is also suited to hand drills, pillar drills, and CNC machines.

What comes in the box with this drill bit?

The box contains one 10mm x 133mm cobalt HSS drill bit supplied in a rigid plastic storage case. The case protects the cutting tip between uses, which matters for a precision-ground bit where tip damage directly affects starting accuracy and bore quality. No lubricant or additional accessories are included.

Can I recycle my old appliance or electrical item with Heavins.ie?

Yes, Heavins.ie is fully committed to environmental responsibility and participates in Ireland’s WEEE (Waste Electrical and Electronic Equipment) recycling scheme. That means when you buy a new electrical item from us, we offer free recycling of your old appliance or electrical item.

What happens if I need to return my order?

If you change your mind or need to return an item for any reason, we’ve got you covered with a comprehensive returns policy. Returns must be scheduled within 14 days of purchase, and the item must be returned in sellable condition, including original packaging where possible. Just contact our team to arrange a hassle-free return - Returns Policy >

Why shop with Heavins.ie?

Heavins.ie is a proud, 100% Irish-owned, family-run business based in Athlone. When you shop with us, you're supporting local jobs, local service, and a business that’s been part of the community for over 40 years.

We don’t just say we care - it’s recognised too. Heavins.ie was named Most Trusted Website of the Year and has won the Midlands Best Customer Service award, thanks to our focus on honest service, fast Irish delivery, and real customer care.