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Cobalt steel drill bit, 5/16 inch, 135 degree split point, straw bronze finish

Cleveland Golf

Cleveland Golf C14216 5/16" 135° Cobalt Drill Bit

SKU CH-2Q59-RMD8A MPN C14216

A 5/16 inch cobalt steel drill bit with a 135 degree split point for precise starts

  • Product typeDrill Accessories
  • Main materialCobalt Steel
  • 5/16" cobalt steel resists heat during heavy drilling
  • 135° split point starts holes without wandering
  • Parabolic flute design clears chips faster
  • Right-hand cutting suits standard drill chucks
  • Decimal size .3125 for precise job matching

Screw Machine Drill Bit

The Cleveland Golf C14216 is a screw machine drill bit made from cobalt steel. It is designed for right-hand cutting in industrial and maintenance applications. The split-point geometry reduces walking when starting a hole. This accessory suits machinists and technicians who need a durable bit for general-purpose drilling.

5/16 Inch Size and 135 Degree Point

The bit measures 5/16 inch with a decimal equivalent of .3125. A 135-degree point angle provides effective cutting across a range of materials. Cobalt steel construction offers heat resistance and extended tool life compared to standard high-speed steel. The non-coolant-through design means chips must clear through the flutes during deep holes.

Upgrade From Standard High-Speed Steel Bits

This cobalt bit replaces general-purpose high-speed steel drills when longer edge retention is required. The straw/bronze finish indicates surface treatment for wear resistance. The jump is worth it for repetitive drilling in tough alloys or stainless steel where standard bits dull quickly. It is not suited for applications requiring through-coolant delivery or left-hand cutting.

How it compares

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

Price $14.99
Cheaper than about 77% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCleveland
Model nameC14216
Product typeDrill Accessories
Size & build
Main materialCobalt Steel

Questions about this item

Will the 5/16" 135° cobalt bit fit my older 3/8" keyed chuck drill?

Yes, the 5/16 inch shank fits any 3/8 inch or larger drill chuck. The 135 degree split point reduces walking on hard materials.

How do I verify the 135 degree split point is cutting correctly after installing the bit?

The bit should start on contact without a centre punch. Clean, quiet chips and a round hole at .3125 inch show the cobalt steel is performing.

Does the C14216 come with a case or just the single 5/16" drill bit?

Only the single cobalt steel drill bit is supplied. No case, lubricant or additional accessories are included in the package.

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