Drill Bit Selection for Metal vs Concrete vs Wood
Different substrates need different drill bits.
Green / Field Check1st yearBatch 2
What You Might Be Looking At
collection of drill bits, uncertainty which for current material
Apprentice words: drill bit type, what bit to use, metal bit, concrete bit
Trade terms: twist drill bit, masonry bit, carbide bit, step bit, unibit
Check First
Material being drilled?
Diameter needed?
Through-hole or tapped?
What Not To Do
Don't use wood bits on metal or concrete. Don't force dull bit. Don't use bit larger than fastener requires.
What can go wrong: Ruined bit, damaged material, unsafe hole, wrong fastener fit, extra repair work
Better Foreman Question
For this [material], what bit type and size? Step bit for sheet metal holes?
Verify With
Reference type: manufacturer instructions
Source to verify: Drill bit manufacturer speed and feed charts
Safe wording: Bit selection depends on material, diameter, and drill type. Use appropriate PPE.