Your Complete Drill Bit FAQ & Resource Guide
Drill Bit FAQ’s – Expert Answers & Buying Guide
Welcome to Drill Bits World’s ultimate FAQ library — your one-stop source for answers to everything drill bit related. Whether you’re a contractor, machinist, DIY enthusiast, or industrial buyer, we’ve organized our most common questions by category so you can find exactly what you need fast.
From choosing the right drill bit for your material to understanding specialty designs like auger, masonry, carbide, diamond, and extra long drill bits, you’ll find detailed, straightforward answers backed by decades of experience.
Need to know what bit works best for stainless steel, how to drill without cracking brick, or what “SDS” really means? It’s all here — plus tips to help extend tool life, improve drilling accuracy, and avoid costly mistakes.
If you don’t see your question here, contact us and our team will be happy to help.
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- FAQ's: Annular Cutters
- FAQ's: Carbide Tipped Drill Bits
- FAQ's: Diamond Drills
- FAQ's: Electrician's Drill Bits
- FAQ's: Extra Long Drill Bits
- FAQ's: Holesaw Drills
- FAQ's: Masonry Drill Bits
- FAQ's: Metal Working Drills
- FAQ's: Percussion Core Drills
- FAQ's: Reamers
- FAQ's: Reduced Shank Drills
- FAQ's: Silver & Deming Drills
- FAQ's: Stanley Hydraulic HD-45 & Skil 736 Drill Bits
- FAQ's: Taper Shank Drill Bits
- FAQ's: Wood Drill Bits
What do electricians use to drill holes?
Electricians typically use cordless power drills paired with step bits for metal, spade bits for wood, or fish bits for running wire.
What drill bit do electricians use?
Step bits, auger bits, spade bits, and extra-long flex bits are most commonly used by electricians.
What’s the difference between a spade bit and an auger bit?
Spade bits are faster but rougher. Auger bits are slower but cleaner and better for deep or repeated stud drilling.
Do I need extra long drill bits for fishing wire?
Yes. Extra long bits (18" to 48") help reach behind walls, above ceilings, or through multiple framing layers without opening up drywall.
What size step drill bit do I need for conduit?
Most electricians use a step bit that covers 3/4" to 1-1/8" sizes for standard conduit fittings. Always check local code and fitting requirements.
Can I use regular drill bits for electrical work?
While possible, regular bits often cause tear-out or aren’t long enough. Electrician-specific bits are designed for clean, efficient cuts and tight spaces.
What type of drill bit is best for electricians?
Electricians often use step bits, auger bits, spade bits, and extra long bits. The right bit depends on the material being drilled and the job—metal boxes, wood studs, or finished walls.