Frequently Asked Questions
- Show All
- 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
Do annular cutters need a pilot hole?
No. Annular cutters use a pilot pin that helps center the cut and eject the slug. A separate pilot hole is not required.
Do carbide drill bits break easily?
They’re extremely hard but brittle—excessive side pressure or flexing can cause breakage.
Do carbide tipped masonry bits work on reinforced concrete?
Yes—though hitting rebar will slow progress and cause extra wear. Use rebar-cutting techniques or bits designed for both concrete and steel.
Do diamond drill bits use real diamonds?
Yes, but they’re synthetic diamonds made for industrial use, not gemstones.
Do extra long drill bits break easily?
They can if misused—avoid side pressure, excessive speed, or forcing the cut.
Do extra long drill bits come in metric and inch sizes?
Yes—available in both measurement systems depending on the application.
Do I need a masonry bit to drill into concrete or brick?
Yes — a standard HSS or wood bit will dull quickly or fail. Use a carbide-tipped masonry bit for these materials.
Do I need a pilot hole for masonry drilling with carbide tips?
Not usually—carbide tips can start directly on the material, but a pilot hole can help with large-diameter drilling.
Do I need a special drill for core drilling?
Yes—core bits require a drill with enough torque, proper mounting, and often a safety clutch. For percussion core bits, use a hammer drill or rotary hammer with a core drilling mode.
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.