How to Use Stubby Drill Bits in Tight Spaces

By Drill Hog® | Published: 2026-10-26

Category: How-to Guides

Learn how to use stubby drill bits for drilling in tight spaces, including setup, technique, and common mistakes to avoid.

Quick Answer

To drill in tight spaces, use stubby drill bits—also called screw machine length bits—because their short length reduces flex and lets you work in confined areas. Follow a careful setup and technique sequence to avoid breakage and get clean holes.

Why Stubby Bits Work in Confined Spaces

Stub length drill bits are shorter than standard jobber bits, which makes them ideal for tight spots. The reduced length means less flex, so the bit is less likely to wander or break when you're working at an awkward angle. They also require less clearance behind the drill, letting you fit into spaces where a longer bit simply won't go.

The trade-off is that stubby bits have a shorter flute length, so they can't drill as deep in one pass. For most confined-space work—like drilling through a stud or into a tight corner—that's fine. Just be aware that for deep holes you'll need a different tool.

Step-by-Step: Using Stubby Bits in Tight Spots

Choose the Right Bit Size: Select the stubby bit that matches the hole diameter you need. Using a bit that's too small can cause the drill to bind, while too large may over-stress the bit. Check the size markings on the bit or the set's index. Always confirm the bit size before starting—don't guess.
Secure the Workpiece: Clamp or hold the material firmly so it can't spin or shift when the bit bites. In tight spaces, use a clamp that fits the area or a helper to hold it steady. A moving workpiece is a common cause of broken bits.
Mark the Hole Location: Use a center punch to make a small indentation at the drilling point. This gives the bit a starting seat and prevents it from walking across the surface, especially on metal. Skipping the punch mark often leads to off-center holes.
Set the Drill Speed: Run the drill at a moderate speed—too fast can overheat the bit, too slow can cause it to grab. For steel, use a slower speed; for wood, a faster speed is fine. Refer to the drill's speed settings or a speed chart. If the bit smokes or turns blue, you're going too fast.
Start the Hole with Light Pressure: Place the bit in the punch mark and apply steady, light pressure to begin the cut. Let the bit do the work—don't force it. Keep the drill perpendicular to the surface unless you're drilling at an angle intentionally. Excessive pressure is the main cause of stubby bit breakage.
Clear Chips Frequently: Because stubby bits have shorter flutes, they clog faster. Pull the bit out periodically to clear chips, especially when drilling deeper holes. This prevents overheating and keeps the cut clean. If the bit stops cutting, it's likely clogged—clear it out.
Finish and Deburr: Once the hole is through, remove the bit and deburr the edges with a countersink or file if needed. This leaves a clean hole and removes sharp burrs that could cause injury. Deburring is quick and makes the finished hole look professional.

Product Facts

Drill Hog USA 29 Pc HI-Molybdenum M7 Stub Length Stubby Drill Short Stub Bit: Includes 29 fractional sizes from 1/16" to 1/2" in 1/64" increments, so you always have the right size for the job. Having the exact size on hand means you can drill precise holes without improvising with a wrong-sized bit.
Drill Hog USA 29 Pc HI-Molybdenum M7 Stub Length Stubby Drill Short Stub Bit