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Olympia Tools 13-Piece M35 Cobalt Drill Bit Set

SKU CH-K38B-45CQ9

13-piece M35 cobalt drill bit set with 135° self-centering points and straight shanks for stainless steel, cast iron and hard metals

  • TypeBand Saw Blades
  • Compatibility/FitmentOut-Opening, Narrow Stile, Store Front Doors
  • Selling UnitSet
  • Item Count2 pack
  • Self-centering 135° points prevent bit walk
  • 13-piece metric set covers 1.5 mm to 6.5 mm
  • M35 cobalt steel resists heat at high speed
  • Straight shank fits standard drill chucks securely
  • 135° split-point design enables fast chip removal

13-Piece M35 Cobalt Drill Bit Set

This 13-piece M35 cobalt drill bit set covers metric sizes from 1.5 mm to 6.5 mm with a straight shank for standard chucks. The 135-degree quick-cut points are self-centering and reduce walking during hole starts. Bits are made from high-speed steel with cobalt for heat resistance and are designed for high-speed operation. The set suits general metal, wood, rubber, bamboo and plastic drilling tasks.

Suited for high-speed metal

Users who need a metric range up to 6.5 mm and run drills at 1500 RPM or higher will benefit from the heat-resistant M35 cobalt construction. The straight shank fits common drill chucks and round collet chucks for secure grip. Buyers requiring larger diameters, specialised coatings or bits rated for hard metals such as hardened steel, stainless steel or cast iron should consider other options.

Capacity covers 1.5 mm to 6.5 mm in 13 increments

The set comfortably handles drilling in steel, wood, rubber, bamboo and plastic at the listed sizes. Performance drops when used below 1500 RPM or on hard metals including hardened steel, stainless steel and cast iron, where the manufacturer advises against use. Headroom ends at the 6.5 mm maximum; larger holes or tougher alloys are outside the design envelope.

Highlights

  • Self-centering 135° points prevent bit walk
  • 13-piece metric set covers 1.5 mm to 6.5 mm
  • M35 cobalt steel resists heat at high speed
  • Straight shank fits standard drill chucks securely
  • 135° split-point design enables fast chip removal

Specifications

BrandOlympia Tools
TypeBand Saw Blades
Compatibility/FitmentOut-Opening, Narrow Stile, Store Front Doors
Selling UnitSet
Item Count2 pack

Questions about this item

Do I need a drill that can reach 1500 RPM to use these 135° cobalt bits effectively?

Yes, the manufacturer states the bits must be operated at 1500 RPM or greater for maximum efficiency and heat resistance.

Will the straight shanks on these 13 metric sizes fit my older keyed chuck?

The straight shank design fits standard drill chucks and regular round collet chucks, so it will secure in older keyed models.

How can I confirm the 135° quick-cut points are self-centering once I start drilling?

The bit should penetrate immediately without a centre punch and must not walk or wander across the workpiece surface.

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