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Ten cobalt drill bits in a plastic storage case

Olympia Tools 3/16 inch Cobalt Drill Bits M35 HSS 135 Degree Tip Jobber Length Twist Drill Bit Set Pack of 10

SKU CH-JG9D-WVREP

Ten 3/16-inch M35 cobalt bits with 135-degree tips drill hard metal, stainless steel, cast iron, wood and plastic, supplied in a storage case

  • Fit and compatibilityOut-Opening, Narrow Stile, Store Front Doors
  • Product typeBand Saw Blades
  • Main materialPlastic
  • Sold asSet
  • Color and finishChrome
  • Key featuresWidely Use
  • M35 cobalt steel with 5% cobalt resists wear and heat
  • 135-degree split point centres quickly and reduces thrust
  • Jobber length flute at 58.74 mm clears chips fast
  • 10-piece set covers 3/16 inch drilling in metal, wood and plastic
  • Sturdy plastic case keeps bits organised and protected

3/16 inch Cobalt Drill Bit Set

This set contains ten identical 3/16 inch jobber-length twist drill bits made from M35 high-speed steel with 5% cobalt. The bits are designed for drilling hard metals such as stainless steel and cast iron, as well as wood and plastic. They come organised in a sturdy plastic storage case.

135 Degree Tip and Straight Shank

The 135 degree split-point tip provides precise positioning and fast penetration with lower pressure. A straight shank prevents walking during initial contact and fits standard drill chucks. The twist flute geometry clears particles quickly to reduce friction and heat build-up during use.

M35 Cobalt Alloy for Hard Materials

The uniform hardness of the M35 cobalt alloy allows the cutting edges to be resharpened repeatedly without damage. The bits comfortably handle stainless steel, cast iron, galvanised pipe, high-temperature alloys and titanium alloys. They are not suited for applications requiring diameters other than 3/16 inch or for very deep holes beyond the jobber flute length.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 68% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameOlympia Tools
Model nameHand Rivet Nut Setter Kit
Part numberGMTOOLS
Product typeBand Saw Blades
Color and finishChrome
Size & build
Main materialPlastic
Compatibility
Fit and compatibilityOut-Opening, Narrow Stile, Store Front Doors
In the box
Number of items2 pack

Questions about this item

How long can the 135-degree tip maintain its edge before sharpening is needed?

The M35 cobalt steel has uniform hardness, so the cutting edge can be repeatedly sharpened without damage, extending usable life under heavy drilling.

How hot do the bits get during continuous drilling in stainless steel?

The 135-degree split-point design clears particles quickly, reducing friction and heat build-up even during extended use in hard metals.

What size drill chuck is required for the straight shank on these bits?

The 3/16-inch (4.76 mm) straight shank fits any standard drill chuck that accepts that diameter, no special adaptor needed.

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