HOW TO:

Bad Dog Multi-Purpose Drill Bits

THE BASICS: DRILL FAST, USE PRESSURE

Bad Dog Multi-Purpose Drill Bits are different than other bits you may have used before, for hard material like metal the bits should be spinning at least 2500 RPM - with the exception of Porcelain Tile and Glass which are drilled slowly. See the guide to the right for specific materials. If you run into any issues, please check out our troubleshooting section or call us at 1.800.252.1330.

RPM GUIDE

HOW DO I DRILL _____ ?

VIDEOS

Material Specific Tips

METAL (NOT Stainless)
Use a drill press
If you only have a hand drill, use heavy pressure and a cutting lubricant like Bad Dog Drool
DO NOT drill pilot hole

METAL (Stainless)
Use a “pulsing action” on the trigger to drill slow RPM when the material requires
Use a cutting lubricant to prevent blueing
DO NOT drill pilot hole

TILE
Know what kind of tile you’re drilling!
Porcelain and Glass tiles should be considered glass, very fragile and thus difficult to drill
Review the RPM guide for appropriate drill speeds

If the debris becomes dark while drilling porcelain,
the bit is dull. STOP drilling!

MARBLE/SLATE
Tape over drilling area to help prevent chipping and cracking of material
DO NOT use a hammer drill
DO NOT drill pilot holes

GRANITE
Use hammer-action drill
Use cutting lubricant like Bad Dog Drool
DO NOT drill pilot hole

 

MASONRY
Use a regular hammer-action drill
Use hammer-action drill where rebar or other metal is present
DO NOT drill pilot hole

PLASTIC
Clean debris regularly from shank when drilling in order to prevent clogging
DO NOT drill pilot hole

WOOD
Best for rough drilling
For other projects, consider Bad Dog Rover Bits for your woodworking

GLASS
Work on a flat surface
DO NOT let the body of the drill (not drill bit) slide into or hit the glass when the bit exits the hole
Use an oil based cutting lubricant
Mae a small reservoir from string or clay to hold the cutting lubricant in the drilling area
Drill pilot hole

MULTIPLE MATERIALS
Review the RPM Guide Above
Adjust the drilling speed to conform to each material as it is being drilled

Lifetime Guaranteed Badge

GUARANTEED FOR LIFE!

How can we back Bad Dog Multi-Purpose Drill Bits like that? Because we make a quality bit that can take a bite out of pretty much anything. Take a look at the tip of a Bad Dog Multi-Purpose Drill Bit. They’re different than any other bit that you may have in your toolbox. This unique Carbaloid tip creates a filing action to burrow through hard materials like tempered and high-speed steel while still drilling soft materials like aluminum and PVC without ripping them apart while resisting fracture and maintaining an edge longer than conventional bits. To get the best performance out of your new tool, please make sure you are using bits correctly.

How to Sharpen Your Bits:

DRILL BIT CARE

  • Sharp bits drill best
  • Use the Diamond Wheel to sharpen the
    bit to 118° flat grind or repair/replace the
    bit under the Lifetime Guarantee
  • Run the pivot along the straight edge
  • Store properly in index to avoid chipping
  • Keep flutes clear of debris
  • Clean pitch from bits with oven cleaner
  • Coat with oil to prevent rust
  • Remove rust with steel wool

RECOMMENDED DRILLS

Here is a selection of drills that spin
at 2,000 RPM and above:

Corded:
  • Dewalt D21002
  • DeWalt DWE1014
  • DeWalt DWD112
  • DeWalt DWD110K
  • Makita 6408
  • Milwaukee 0240-20
  • Milwaukee 0101-20
  • Porter Cable PC600D

Cordless:

  • Dewalt DCD708C2
  • Dewalt DCD991P2
  • Dewalt DCD791D2
  • Makita XFD12Z
  • Milwaukee 2997-22 

Impact Drivers:

  • Dewalt DCF880B
  • Makita XDT111
  • Ryobi # P881
  • ALMOST ALL OTHER MAKES AND MODELS

TROUBLESHOOTING: DO ANY OF YOUR BITS LOOK LIKE THIS?

Bad Dog Multi-Purpose Drill Bits are as tough as they come, but they are not indestructible. Look at the drill bits below to find out what went wrong, and how to prevent it from happening to you. The Multi-Purpose Drill Bits are covered by a LIFETIME GUARANTEE. So even if any of this happens to your bits, we will replace them.

PROBLEM: UNNECESSARY PILOT HOLES
This is what happens when pilot holes are unnecessarily drilled.
SOLUTION
With Bad Dog Multi-Purpose Drill Bits, DO NOT drill pilot holes into stainless steel, metal, marble, or granite.

l1

PROBLEM: DRILL BIT IS LOOSE IN CHUCK
This bit was not securely tightened into the chuck. If the bit is continually used, the bottom will completely burn off.
SOLUTION
Make sure the drill bit is snug and tight in the chuck.

l2

PROBLEM: CHIPPED BIT/DRILLING TOO SLOWLY
The drill bit may become chipped when drilling too slowly.
SOLUTION
These drill bits are not like any you have used in the past. Take a look at the specialized drilling techniques and drill speeds for the materials you are working on.

l3

PROBLEM: DRILLING TOO MANY RIVETS AT ONCE
Multiple rivets have fused to this drill bit
SOLUTION
After drilling out 2 or 3 rivets, remove the rivets from the drill bit. If they are not removed, they may become a permanent fixture.

l4

PROBLEM: BENT DRILL BIT
While the shaft of the drill bit has some flexibility, if you try to flex beyond 15°, some permanent bending may occur.
SOLUTION:
Because of the nature of the small bits, we recommend putting an even vertical pressure while drilling.

l5

PROBLEM: MELTED BIT/DRILLING WITHOUT A TIP
The drill bit will melt if it is used to drill without a tip.
SOLUTION:
If your bit has lost it’s tip, then it needs to be replaced. All Bad Dog Multi-Purpose Bits are guaranteed for life. For details on the lifetime warranty, please click HERE.

l6

PROBLEM: INCORRECTLY SHARPENED DRILL BIT
This is an example of incorrectly sharpened drill bit.
SOLUTION:
Sharpen the bit on a 118° angle. We recommend using our Diamond Wheel to assist with this, or you can send it back to us and we’ll sharpen it for you.

l7

PROBLEM: DRILLING WITH A DULL BIT
When a dull bit is continually used, it can end up looking like this.
SOLUTION:
Sharpen the bit on a 118° angle. We recommend using our Diamond Wheel to assist with this, or you can send it back to us and we’ll sharpen it for you.

l8

How Are Bad Dog Bits Different?