Best Metalworking & Multipurpose Drill Sets Under $100 (2026)
We ranked products by a value score combining tool material and coating, set contents, intended metalworking uses, and adaptability under $100
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: UNC tap and drill combo offers a practical selection of HSS tap sizes for common unified fasteners
- Best Value: Four spiral flute step drill bit set with countersink bits, 1/4 in hex — Best for thin metals: spiral-step design with countersinks and 1/4-inch hex shanks speeds clean drilling in sheet and plate
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: UNC tap and drill combo offers a practical selection of HSS tap sizes for common unified fasteners
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 thin metals: spiral-step design with countersinks and 1/4-inch hex shanks speeds clean drilling in sheet and plate
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 reach: M35 cobalt extra-long bits provide reach and hardness needed for confined or through-hole drilling
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 general-purpose set: broad HSS range with Ti coating balances wear resistance and everyday metal drilling needs
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: combined left-hand bits and extractors streamline removal of broken screws and bolts
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 work: M35 cobalt set targets abrasive or high-heat metal drilling with durable alloy composition
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