Best Metalworking & Multipurpose Drill Sets (2026 Guide)
We selected sets by evaluating material type, bit/tap count and sizes, specialty features (step, left-hand, extra-long), and aggregated ratings and review volume
The Verdict
- Best Overall: U.N.C. 18 Pc H.S.S. Tap & Drill Set (UNC) 6-32, 8-32, 10-24, 10-32UNF — Best for threading tasks: UNC tap-and-drill combo offering common UNC sizes useful for metal threading work
- Best Value: Four spiral flute step drill bit set with countersink bits, 1/4 in hex — Best for sheet metal and deburring: spiral flute step drill with countersink bits and 1/4" hex for quick swaps
This guide covers top-rated metalworking and multipurpose drill sets suited for tapping, drilling, extraction, and step drilling tasks in 2026. Picks were chosen based on product features, material (HSS, M35 cobalt, Ti coatings), set composition, and aggregated user ratings and review volume
Top Picks
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1
Best Overall U.N.C. 18 Pc H.S.S. Tap & Drill Set (UNC) 6-32, 8-32, 10-24, 10-32UNF
Best for threading tasks: UNC tap-and-drill combo offering common UNC sizes useful for metal threading work
H.S.S. tap and drill set in UNC sizes for metalworking. Includes 18 pieces with sharp taps for tapping and drilling. Customers note good quality and value; some report durability concerns
- 18-piece H.S.S. set
- multiple UNC sizes included
- sharp, functional taps
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2
Best Value Four spiral flute step drill bit set with countersink bits, 1/4 in hex
Best for sheet metal and deburring: spiral flute step drill with countersink bits and 1/4" hex for quick swaps
Drill bit set with multiple step and countersink bits for metal, aluminum, wood, and plastic. Delivers quality performance and cleaner drilling, per customer feedback
- varied step drill diameters
- countersink compatibility
- quick-change hex shank
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3
Cobalt Extra Long Drill Bits Set (5pc) M35 HSS 12"
Best for deep holes: M35 cobalt extra-long 12" bits designed for reaching recessed or deep metal workpieces
Cobalt drill bit set with 5 sizes (1/8"–3/8"), 12" length for deep holes in metal, plastic, and wood. Noted for good quality and sharpness; some report edge durability and others mention a shatter risk
- M35 cobalt HSS
- 12" long for extended reach
- 5-piece set with common sizes
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4
Cobalt Drill Bit Set, HSS with Ti coating (1/16"–1/2"), 29pcs
Best balanced set: HSS cobalt bits with Ti coating covering 1/16"–1/2" range for general metal drilling tasks
High-speed steel cobalt-coated drill bit set for metal and wood. 135° split point design for easier start and reduced wandering; durable twist design for debris removal. Customers note solid quality and value for money, with mixed durability feedback
- gold titanium coating for hardness and wear resistance
- 135° split point for accurate starts
- 29 sizes from 1/8" to 1/2" in 1/16" increments
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5
30Pcs Screw Extractor & Bolt Extractor Set with Left Hand Drill Bits
Best for fastener recovery: 30-piece screw and bolt extractor kit bundled with left-hand bits for damaged fasteners
Durable bolt and screw extractor set featuring cobalt HSS and Cr-Mo steel for damaged fasteners. Includes 13 bolt extractors, 6 spiral screw extractors, and 6 left-hand cobalt drill bits. Customer insight notes mixed quality and durability concerns
- co-balt fortified hss material
- left-hand drill bits included
- 13-bolt extractors with easy read sizes
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6
Crosstar M35 Cobalt Drill Bit Set, 21pc
Best for high-wear drilling: M35 cobalt 21-piece set with TiAlN-style coating for extended life in tough alloys
M35 cobalt drill bits with TiAlN coating designed for hardened metals and high-heat applications. 3X lifespan improvement over standard titanium coatings. Customer insight notes mixed sentiment
- M35 cobalt alloy for hardness
- TiAlN coating for heat resistance
- 1/16" to 1/2" size range