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Hi! We're the Strong Family - Ann, Joseph and JJ. We've been working on cars and DIY'ing since we can remember. So, back in 1983, when a shattered grinding wheel nearly caused serious injury while we were working on our Bluebird Bus, we decided to come up with a tool that was safer, stronger, better. That first tool has lead to a whole line of 'em and for three generations now our family-owned company has been making specialty cutting and drilling tools that tradesmen and DIYers alike can count on - all backed by our Lifetime Guarantee.

Individual Multi-Purpose Drill Bits

4.5" Heavy Diamond II - ENDLESS Cutting + Grinding Wheel

4.5" HDII Flange - ENDLESS Flush Grinding + Cutting

14 Piece Bad Dog Multi-Purpose Drill Bits

Individual Rover Bits

3" HDII - ENDLESS Cutting + Grinding Wheel

19 piece Bad Dog Multi-Purpose Drill Bits

1.25" HDII - ENDLESS Cutting + Grinding Wheel

Dried Drool Cutting Wax

5 Piece Rover /Forstner Bit Set A - Fast Cutting Forstner Bits

Carbide Drill Bits for Metal: Stop Burning Through Bits That Quit After One Hole

If you've ever started a hole in stainless steel and watched your bit go from sharp to useless before you broke through, you already know the problem. High-speed steel and cobalt bits have limits a …

Posted by Joseph Strong on 17th Jun 2026 Mechanical Engineer & Third-Generation Tool Designer at Bad Dog Tools

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How to Drill Out a Broken Tap — And Why Your Cobalt Bits Won't Cut It

If you've ever snapped a tap off flush in a workpiece, you already know what comes next: that sinking feeling, the ruined part, the wasted hour. A broken tap is one of the most frustrating problems …

Posted by Joseph Strong on 3rd Jun 2026 Mechanical Engineer & Third-Generation Tool Designer at Bad Dog Tools