Description:

Key Features

Split-Point Precision A 118-degree split-point tip bites in immediately instead of skating across the surface, keeping the hole exactly where you marked it for accurate joint alignment. High-Speed Steel Durability High-speed steel construction holds its edge through repeated dowel holes, which keeps hole diameter consistent across an entire project. Built-In Stop Collar The included stop collar locks in a repeatable drilling depth so every hole in a multi-dowel joint seats the dowel to the same depth.

Overview

The Kreg 3/8-in. Dowel Drill Bit with Stop Collar is sized to match Kreg's 3/8 in. fluted dowel pins, giving you the mid-size option in Kreg's dowel joinery system for projects that need more holding power than a 1/4 in. dowel but don't call for a full 1/2 in. pin. Model number KDDB375.

The 118-degree split-point tip is what makes this bit suited to joinery work specifically, rather than general drilling. It bites into the material on first contact instead of wandering, which is critical when a joint's alignment depends on every hole landing exactly on its mark especially true with 3/8 in. dowels, which are commonly used in heavier furniture and cabinet face-frame work where multiple pins are set close together.

High-speed steel construction keeps this bit cutting a consistent 3/8 in. diameter hole through repeated use, which matters because dowel joinery projects frequently call for drilling the same size hole dozens of times across a single build. A bit that wears and drifts in diameter will produce a progressively looser or tighter fit as the project goes on HSS resists that wear far better than basic carbon steel.

The stop collar that comes with this bit is set once against a test piece and then locked down, giving you the same drilling depth on every subsequent hole without remeasuring. For 3/8 in. dowel work, where projects often involve multiple dowels per joint, that repeatability is what keeps assembly fast and the joint tight.

Who should buy this: woodworkers and cabinet builders using Kreg's 3/8 in. dowel pins for furniture, face-frame, and shelving joinery. If your project calls for a different dowel diameter, Kreg's 1/4 in. and 1/2 in. dowel drill bits are the matching sizes for those pin sizes.

Accurate Starts on Every Hole

The split-point tip keeps hole placement accurate even when a joint calls for several 3/8 in. dowels set close together.

• 118-degree split-point tip for precise starts
• Sized to match Kreg's 3/8 in. fluted dowel pins

Consistent Depth, Every Hole

The included stop collar takes the guesswork out of matching drilling depth across every hole in a multi-dowel joint.

• Stop collar sets repeatable hole depth
• Works with the Kreg Dowel Jig Kit and dowel jig upgrade kits

What's in the Box

• (1) 3/8 in. high-speed steel dowel drill bit
• (1) stop collar with hardware

Key Specifications

Compatibility

Dowel System Matches Kreg's 3/8 in. fluted dowel pins (KD375-30) for correct hole-to-dowel fit. Jig Compatibility Works with the Kreg Dowel Jig Kit and Kreg Dowel Jig Upgrade Kits.

Built For

Woodworking Cabinetry Furniture Building DIY / Hobbyist

Pro Tip

For face-frame and furniture joints using multiple 3/8 in. dowels, drill and dry-fit one test joint on scrap first it's the fastest way to confirm your stop collar depth before you commit holes to the real workpiece.

Warranty & Support

Backed by Kreg's 3-year limited warranty.

Tool Nut's Take

Tool Nut's Take

The mid-size option that covers most furniture joinery

3/8 in. is the size that shows up most often in face-frame and furniture dowel work, and this bit is built to keep that work accurate.

• Who it's for: Woodworkers and cabinet builders running 3/8 in. dowel joinery.
• Why it stands out: Split-point accuracy, HSS edge retention, and an included stop collar for repeatable hole depth.
• Worth knowing: Confirm this matches the dowel pin size you're actually using Kreg's 1/4 in. and 1/2 in. bits are separate SKUs for those sizes.

Common Questions

• Does the stop collar come with the bit? Yes, the stop collar and hardware are included.
• What dowel pins does this match? Kreg's 3/8 in. fluted dowel pins.