SMBits – The Sheet Metal Drill Bit Set 38 Years in the Making
For nearly four decades, we’ve built our name on the one-bit-does-it-all mentality. So releasing a second bit? Yeah, it raised some eyebrows. But sheet metal drilling isn’t just about getting through the material—it’s about doing it fast, clean, and without distortion. That’s where the new SMBits take center stage.
Need a 3/8” hole in stainless? Drill it. No warping, no wandering, and barely a burr on the backside. And like all Bad Dog tools, these cobalt beasts aren’t limited to just one job. Use them on stainless steel, aluminum, brass, plastic, wood, laminate, and solid surface—all with one set.
✅ Solid Cobalt Construction – Super hard, super sharp, built to cut clean and last long
✅ Quick Start Multistep Tip – Grabs fast, even on curves; reduces walking and backside burr
✅ Impact-Ready Hex Shanks – Won’t spin, won’t slip; fits quick-connect and impact guns
✅ Lifetime Guarantee – Dull it? Break it? We repair or replace it. For life.
3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", and 1/2"
All with quick-connect hex shanks, packed in a rugged metal index.
Reminder: Always secure your workpiece before drilling.
Sheet Metals including Stainless Steel, Mild Steel, Aluminum, Brass plus Plastics, Wood, Laminate, and Solid Surface.
Concrete, Stone, or any other kind of masonary will dull our Sheet Metal Bits immediately. Very hard steel such as tool steel or carbide cannot be drill because they are harder than the cutting surface of the bits. Glass. If you need to drill any of these materials consider our Multi-Purpose Drill Bits.
It depends on what material you are planning on drilling through. The harder the material, the faster the edge will dull. If you use a cutting lubricant such as Bad Dog Drool, and make sure to keep the rpm and pressure low, you'll get a longer life too. But, good news! They’re Guaranteed For Life! If you dull or damage a bit send it back to our shop (24 Broadcommon rd, Bristol, RI) and we sharpen/replace it for Life!
Yes! Unlike our Multi-Purpose Drill Bits we strongly recommend using cutting oil or wax (like our Bad Dog Dried Drool) with your Sheet Metal Bits. It will speed up your drilling and keep your bits sharper, longer.
Use low speed ~ 600 RPM and light pressure. This is just about the sweet spot for most cordless drills. Each bit has a quick connect Hex End and can be used in an Impact Gun, but be aware that impact guns opperate at a much higher speed ~ 3000 RPM. When using Sheet Metal Bits in an impact gun control your speed by partially pulling or feathering the trigger. Also be sure to prevent the impact mode from kicking in by only using light pressure.
We love quick connect hex ends, they make changing bits quick and conventient in an impact gun and prevent slipping in a traditional drill ~ we wouldnt make a bit without them! But be aware that impact guns opperate at a much higher speed ~ 3000 RPM than a traditional drill. Sheet Metal Bits should be spinning much slower ~ 600 RPM. When using Sheet Metal Bits in an impact gun control your speed by partially pulling or feathering the trigger. Many modern impact guns come with an adjustable speed setting, that should always be set to the lowest setting. Also be sure to prevent the impact mode from kicking in by only using light pressure when drilling.
Dull or damage our tools and we will repair or replace them.
Economical Flat Rate Shipping for orders under $50 in the USA. Some exclusions apply.
Don’t love your Bad Dog Tools? Return them in 60 days for your money back.
