Best Reduced Shank Drill Bits Under $50 (2026)
We ranked options by a value score combining material (cobalt vs HSS), size range, shank compatibility, and price under $50
The Verdict
- Best Overall: COMOWARE Reduced Shank Drill Bit Set, 8 Sizes 9/16" to 1" — Best set for variety: offers eight HSS reduced-shank sizes from 9/16" to 1" for flexible metal drilling tasks
- Best Value: Drill America 57/64in Reduced Shank Cobalt Drill Bit — Best single cobalt bit for hardened steel: reduced shank design maintains hardness and heat resistance during heavy use
Top Picks
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1
Best Overall COMOWARE Reduced Shank Drill Bit Set, 8 Sizes 9/16" to 1"
Best set for variety: offers eight HSS reduced-shank sizes from 9/16" to 1" for flexible metal drilling tasks
Reduced shank HSS drill bit set with dual gold/black coatings for durability and smoother drilling. Customers note good edge retention in mild steel and clear size labeling
- M2 high-speed steel with dual coatings
- 135° split point for precision
- 3-flat 1/2" shank for stability
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2
Best Value Drill America 57/64in Reduced Shank Cobalt Drill Bit
Best single cobalt bit for hardened steel: reduced shank design maintains hardness and heat resistance during heavy use
Cobalt drill bit with 1/2in shank for harder metals. Improves performance with cobalt content and gold oxide surface. Some customers report variability in dullness and durability
- cobalt enhanced performance for hard metals
- versatile round shank for diverse toolholders
- aerospace standard 907 compliance
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3
Drill America 29/32" cobalt drill bit, 1/2" shank
Best mid-size cobalt option: 29/32" cutting diameter with a 1/2" shank for straightforward chuck compatibility and durability
Cobalt steel drill bit with round shank for versatile toolholding. Designed for harder metals with cobalt content; gold oxide surface indicates coating type. Customer insight notes mixed results on sharpness and durability
- cobalt for hard metals
- round shank compatibility
- aerospace standard 907
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4
Drill America 51/64in Reduced Shank Cobalt Drill Bit, DWDCO Series
Best DWDCO-series choice: reduced shank cobalt construction built to withstand high-heat drilling in tough metals
Cobalt drill bit with 51/64" reduced shank and 1/2" shank compatibility. Cobalt steel for harder metals; round shank supports diverse toolholding systems. Customer insight notes mixed durability and sharpness performance
- cobalt alloy for hard metals
- reduced shank with versatile fit
- aerospace standard 907 compliant
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5
Drill America 15/16 in Reduced Shank Cobalt Drill Bit
Best for stainless work: 15/16" cobalt bit with a round reduced shank engineered for cutting harder alloys
Cobalt drill bit with 1/2 in round shank for use in various toolholding systems. Designed for drilling harder metals; features a gold oxide surface and counterclockwise chip evacuation. One customer note highlights varied sharpness and durability
- cobalt for harder metals
- round shank for versatile holders
- aerospace-standard 907
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6
Drill America cobalt reduced shank drill bit 63/64" DWDCO
Best large-diameter cobalt pick: 63/64" reduced shank design balances rigidity and heat resistance for big metal holes
Cobalt steel drill bit with 63/64" reduced shank and 1/2" shank option. Designed for harder metals; round shank compatible with various toolholding systems. Customer note: mixed feedback on durability and sharpness
- cobalt for hard metals
- reduced shank with versatile grip
- aerospace standard 907