Small Drill Bit Assortment: When to Use 9.5 mm Bits
By Supergrit Abrasives | Published: 2026-10-27
Category: Buying Guides
A practical guide to choosing and using a small drill bit assortment, focusing on 9.5 mm bits and the value of a 1 lb mixed set for light-duty drilling tasks.
Quick answer
A small drill bit assortment, like the Supergrit-Dev set with sizes up to 9.5 mm, is ideal for light-duty drilling in soft materials, electronics work, or hobby projects where you need a variety of small diameters in one economical package.
Why choose a mixed small bit set over individual bits
A 1 lb assortment of small drill bits gives you a range of diameters without buying each size separately. This is cost-effective if you frequently drill small holes but don't need high-end durability for metal or masonry. The trade-off is that mixed sets often use general-purpose steel rather than cobalt or carbide, so they wear faster on hard materials.
For tasks like drilling plastic, wood, thin sheet metal, or circuit boards, a mixed set provides enough bits to handle common sizes from under 1 mm up to 9.5 mm. You get the convenience of having the right bit on hand without running to the store.
When 9.5 mm bits fit best
A 9.5 mm drill bit (roughly 3/8 inch) is a medium-small size useful for pilot holes, cable pass-throughs, and hardware clearance. In a small assortment, the 9.5 mm bit is often the largest included, so it's your go-to for holes that need a bit more diameter but still fall within the set's range.
Keep in mind that these bits are not designed for heavy-duty production drilling or hardened steel. They work well in handheld drills for home improvement, model making, and light fabrication.
Decision rules for choosing a small drill bit assortment
- Material type: Use a mixed small bit set for wood, plastic, drywall, and soft metals like aluminum or brass. Avoid for hardened steel, stainless steel, or masonry.
- Frequency of use: If you drill small holes occasionally (a few times a month), a 1 lb assortment offers good value. For daily professional use, invest in individual premium bits. Mixed sets wear faster under heavy use; replace bits as needed.
- Size range needed: Choose this set if your largest required hole is 9.5 mm or smaller. For larger diameters, you'll need a separate set or individual bits.
- Budget vs. performance: A 1 lb assortment costs less per bit than buying singles, but the bits are general-purpose. If you need precision or longevity, expect to upgrade individual sizes.
Product facts
- SMALL - UP TO 9.5 MM DRILL BIT ASST 1LB: This Supergrit-Dev drill bit assortment includes sizes up to 9.5 mm and comes in a 1 lb package. You get a variety of small diameters in one purchase, ideal for projects that need multiple bit sizes without buying each separately.
SMALL - UP TO 9.5 MM DRILL BIT ASST 1LB
Is this assortment right for you?
Best for
- Home DIYers and hobbyists who need a range of small drill bits for occasional projects
- Light-duty drilling in wood, plastic, and soft metals
Not for
- Professional metalworkers or machinists needing high-speed steel or carbide bits
- Drilling holes larger than 9.5 mm or into hardened steel
