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Short cobalt drill bit with split-point tip, matte gold finish

Drill America

Drill America Cobalt Heavy Duty Split Point Stub Drill Bit 43/64in pneumatic accessory

SKU CH-NMEZ-JAR3E

Cobalt stub drill bit in 43/64in size with 135-degree split point for self-centering drilling in iron and steel

  • Product typeDrill Accessories
  • Cobalt construction handles tough iron and steel materials
  • 135 degree split point centres itself and lowers thrust
  • Short stub length fits tight spindle clearance setups
  • Made to Aerospace Standard 907 for reliable quality
  • Suits both portable and machine drilling applications

Cobalt Stub Drill Bit

This Drill America cobalt heavy duty stub drill bit measures 43/64in and is built to Aerospace Standard 907 for industrial drilling tasks. It suits mechanics and fabricators who need a short, rigid cutter for portable or machine work in iron and steel families.

135 Degree Split Point

The 135 degree split point is self-centering and reduces thrust during drilling, which helps accuracy on hard materials. Sizes above 1/2in normally use a 118 degree standard point, so this bit retains the sharper geometry for better performance in tough alloys.

For Limited Clearance Setups

Buyers who need a compact drill for screw machine setups with restricted spindle clearance will find the short length practical. Workers who require longer flutes for deep holes or bits for non-ferrous materials should look at something else.

How it compares

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

Price $35.99
Pricier than about 58% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameDrill America
Product typeDrill Accessories

Questions about this item

How does the 135 degree split point change drilling performance?

The 135 degree split point is self-centering and reduces the thrust needed to start the hole, improving accuracy on portable or machine drilling.

What does the Aerospace Standard 907 designation indicate about this bit?

Aerospace Standard 907 means the cobalt screw machine drill is manufactured to a recognised aerospace specification for quality and dimensional consistency.

Will the 43/64in stub length fit in a standard drill chuck?

The short, rugged stub construction is designed for limited spindle clearance, so it fits standard chucks where longer bits would not.

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