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Drills & drill stops · SKU 17102

Threaded Drill Bit #40, Cobalt, 1"

A #40 cobalt bit on the 1/4"-28 threaded shank angle drills take. #40 is the hole our drill chart gives for a 3/32" rivet.

  • Length1" (a distributor's "short")
  • Made inUSA
  • MaterialNAS 965 cobalt steel
  • Point135° split

Where to buy

AmericaDistributor coming soonOur partner for this region is on its way
EuropeDistributor coming soonOur partner for this region is on its way
OceaniaDistributor coming soonOur partner for this region is on its way

Distributor? Get listed →

More distributors

AmericaMore distributors coming soon
EuropeMore distributors coming soon
OceaniaMore distributors coming soon

A distributor's decimal for this size, 0.0980", is the one on our drill chart, where #40 is the drill for a 3/32" rivet. A distributor offers this size in four lengths; this is the 1" one, for tight spaces.

The 1/4"-28 thread fits the Sioux 90° drill listed here.

Specifications

Size#40 (0.0980")
Length1" (a distributor's "short")
MaterialNAS 965 cobalt steel
Point135° split
Shank1/4"-28 threaded
Made inUSA
Volume priceReduced unit price from 50

Source: a distributor's listing, checked 2026-09-29.

Questions people actually ask

What is the #40 x 1" Cobalt 1/4" x 28 Threaded Shank Bit made of?

NAS 965 cobalt steel, according to the distributor listing checked on 2026-09-29.

What shank does the #40 x 1" Cobalt 1/4" x 28 Threaded Shank Bit take?

1/4"-28 threaded, according to the distributor listing checked on 2026-09-29.

Where can I buy the #40 x 1" Cobalt 1/4" x 28 Threaded Shank Bit?

A distributor we checked lists it in the Americas. The link to its page, with the live price and stock, opens when the partnership does.

More drills & drill stops

#40 x 1" Cobalt 1/4" x 28 Threaded Shank BitWhere to buy
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