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
What is the difference between diamond and carbide percussion core bits?
Diamond bits excel on very hard materials like reinforced concrete and stone; carbide bits are better for softer masonry and brick.
What is the difference between diamond and tungsten drill bits?
Diamond bits cut by abrasion; tungsten carbide bits cut by shearing. Each is best for specific materials.
What is the difference between SDS and standard masonry drill bits?
SDS bits have special shanks for SDS hammer drills, allowing more powerful hammering and quick changes. Standard bits have smooth or hex shanks for regular drills.
What is the difference between SDS, SDS-Max, and standard shank masonry bits?
SDS and SDS-Max bits lock into special hammer drills for higher impact energy; standard shank bits fit regular chucks.
What is the difference between solid carbide and tungsten carbide?
Tungsten carbide is the primary material used to make solid carbide tools. “Solid carbide” usually means the whole cutting edge is carbide, while some tools just have carbide tips.
What is the hardest masonry drill bit?
Solid carbide and premium diamond-tipped masonry bits are the hardest and most durable.
What is the lifespan of a diamond drill bit?
It depends on material, cooling, and use—can range from a few holes to dozens when properly used with water cooling.
What is the longest drill bit for wood?
Ship auger bits can reach 18" or more.
What is the tolerance of a reamed hole?
Reamed holes can achieve tight tolerances, often within ±0.001" depending on the tool and setup.