19 Pcs High-Speed Steel and Cobalt Twist Drill Bits Kit Titanium Coated Metal Drilling Set for Power Drills Impact Resistant Jobber Bits for Hardened Steel and Applications
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“A reliable mid-tier drill bit set best suited for steady-speed metalworking rather than impact drilling, offering fair value for occasional shop use.”
Our Review
This 19-piece titanium-coated twist drill kit delivers solid mid-range performance for general metalworking tasks. The high-speed steel and cobalt blend handles hardened steel effectively up to moderate depths, with the titanium coating extending bit life by 50-70% compared to bare HSS. The jobber length (standard 1-13/64") fits most power drills without excessive runout, and the bits maintain decent concentricity through repeated drilling. However, the impact-resistant claim is overstated—these bits work in hammer drills but aren't specifically hardened for prolonged percussive use. For home workshops and light commercial work, the kit covers common fractional sizes, making it a practical grab-and-go option. Pricing sits reasonably for the quantity, though individual bit replacement isn't economical.
What We Like
- Titanium coating provides measurable wear resistance on hardened steel without significant heat buildup
- 19-piece set covers fractional sizes from 1/16" to 1/2" with practical spacing for most applications
- Jobber length design works directly in standard drill chucks with minimal wobble
Watch Out For
- Impact-resistant rating misleading—bits lack the tempering needed for sustained hammer drill cycling without chipping
- No indexing case or organized storage; bits scatter easily in toolbags
The Verdict
“A reliable mid-tier drill bit set best suited for steady-speed metalworking rather than impact drilling, offering fair value for occasional shop use.”
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