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Cotton Twill vs Drill — What's the Difference?
Drill is a specific, heavier twill: a 3/1 warp-faced diagonal built for hard wear and industrial laundering. Twill is the general family of diagonal weaves, which includes 2/1 and 3/1 in a wide weight range. All drill is twill; not all twill is drill. Choose drill for coveralls and uniforms, lighter 2/1 twill for shirting and casual trousers.
| Cotton twill | Cotton drill | |
|---|---|---|
| Weave | 2/1 and 3/1 diagonal | 3/1 warp-faced diagonal only |
| Weight | 4–9 oz (140–320 g/m²) | 6–11 oz (200–380 g/m²) |
| Face | Visible diagonal, softer drape | Warp-dominant, tighter, tougher |
| Built for | Garments, drape, comfort | Abrasion, industrial wash, workwear |
| Common uses | Chinos, overshirts, light jackets | Coveralls, uniforms, cargo trousers |
Choose Cotton twill
You want drape and a lighter garment weight, or a 2/1 construction.
Choose Cotton drill
You need industrial durability, wash-fastness and a warp-faced 3/1.
Common questions
Does the twill direction (S vs Z) matter?
For most workwear and garments, no — it is an aesthetic choice for how the diagonal catches light. It matters when matching an existing fabric or for some technical specs; tell us the reference and we match the direction.
Can drill be woven light enough for shirts?
A true 3/1 warp-faced drill starts around 6 oz and reads as a heavier cloth. For a shirt-weight diagonal, a 2/1 twill at 4–5 oz is the right construction.
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Not sure which fits your spec? Send us the end use and we will recommend one.