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Thirteen cobalt twist drill bits in graduated sizes inside a plastic storage case

GMTOOLS 13Pcs Cobalt Drill Bits Set M35 HSS 135 Degree Tip 1/16-1/4 inch

SKU CH-FXW2-0QC8Y

13-piece M35 cobalt drill bit set with 135-degree split points for hardened metal, stainless steel, cast iron, wood and plastic, supplied in a storage case

  • Type1, Stainless,Wood,Cast Iron,Plastic,Metal,Steel
  • MaterialSteel
  • Compatibility/FitmentStainless,Wood,Cast Iron,Plastic,Metal,Steel
  • Selling UnitSet
  • Item Count13, 13Pcs Cobalt Drill Bits Set
  • Commercial/Residential13 pcs Cobalt
  • M35 alloy with 5% cobalt resists wear on hardened metals
  • 135° split point centres automatically and cuts with less pressure
  • Twist jobber design clears chips faster for cleaner holes
  • 13-piece range covers 1/16 to 1/4 inch for versatile drilling
  • Plastic storage case keeps bits organised and protected

13-Piece Cobalt Drill Bit Set

This GMTOOLS set contains 13 M35 cobalt twist bits ranging from 1/16 to 1/4 inch. The 5% cobalt alloy increases wear resistance over standard 4241 HSS bits. It targets tradespeople and DIY users drilling hardened metal, cast iron, stainless steel, wood and plastic.

135° Split Point for Quick Starts

The 135 degree split point centres itself automatically and cuts with less pressure, reducing walking on hard surfaces. The round shank fits standard drill chucks and tool-holding systems. The twist flute clears chips efficiently. No installation issues are noted in the data.

Covers 1/16 to 1/4 Inch Diameters

The 13 sizes handle common pilot, clearance and tapping holes in sheet metal, bar stock and timber. M35 steel resists heat buildup better than basic HSS, but the set stops at 1/4 inch, so larger holes need a separate bit. The plastic case keeps the pieces organised.

Highlights

  • M35 alloy with 5% cobalt resists wear on hardened metals
  • 135° split point centres automatically and cuts with less pressure
  • Twist jobber design clears chips faster for cleaner holes
  • 13-piece range covers 1/16 to 1/4 inch for versatile drilling
  • Plastic storage case keeps bits organised and protected

Specifications

BrandGMTOOLS
Type1, Stainless,Wood,Cast Iron,Plastic,Metal,Steel
MaterialSteel
Compatibility/FitmentStainless,Wood,Cast Iron,Plastic,Metal,Steel
Selling UnitSet
Item Count13, 13Pcs Cobalt Drill Bits Set
Commercial/Residential13 pcs Cobalt
Part NumberCobalt Twist Drill Bit

Questions about this item

How can I confirm the 135 degree split point is self-centering after I start drilling?

The bit should enter the workpiece without wandering and produce clean chips with light pressure on stainless steel or cast iron.

What comes in the box and what must I supply myself?

The set includes 13 cobalt bits from 1/16 to 1/4 inch in a plastic storage case; you only need a compatible drill chuck.

Which bit count should I choose between the 13, 15, 21, 29 and 115 piece options?

Pick the 13 piece kit for the exact 1/16 to 1/4 inch range shown here; larger sets add smaller or larger diameters.

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