multipurpose - Posts - Bad Dog Tools

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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

How to Drill a Hole in a Tile Corner Without Cracking It

Drilling a hole in a tile corner is one of the most nerve-wracking cuts in any tile job. You're close to an edge, the glaze is slick as glass, and the bit wants to skate everywhere but where you ne …

Posted by Joseph Strong on 20th May 2026 Mechanical Engineer & Third-Generation Tool Designer at Bad Dog Tools

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The Only Diamond Grinding Disc You Need This Summer: Meet the HDII

Your summer is always crazy. One day you're patching a trailer in the driveway, the next you're stripping barnacles off a boat hull, then a weekend project has you cutting rebar for a fence post. M …

Posted by Joseph Strong on 13th May 2026 Mechanical Engineer & Third-Generation Tool Designer at Bad Dog Tools