Build an Upgraded V-Block for Round Workpieces
Holding round or octagonal workpieces securely can be a challenge. Whether you're drilling a hole in a dowel or planing a spindle, the workpiece has a tendency to roll or shift when you least want it to.
A simple V-block jig provides a stable cradle for these awkward shapes. But with a few upgrades, you can make this basic workholding accessory even more versatile.
This shop-made V-block uses laminated plywood, a protective center kerf, a hardboard end stop, and a removable extension to accommodate longer workpieces.
Build a Sturdy Plywood V-Block
The body of the jig is made from two layers of plywood laminated together to create a thick, stable block.
A V-shaped groove along the top cradles round or octagonal stock and keeps it from rolling.
One useful detail is a saw kerf cut along the center of the V-groove. This provides clearance for the corners of octagonal workpieces, helping prevent damage to fragile edges.
Add an End Stop for Hand-Planing
A V-block is useful for more than drilling holes.
When working with round or octagonal stock at the workbench, it can provide support while you shape or smooth the surface with a hand plane.
To keep the workpiece from sliding forward under the pressure of the plane, add a hardboard stop to one end of the block.
The stop catches the end of the workpiece while the V-groove keeps it from rolling.
Make a Removable Extension for Long Workpieces
Long dowels and spindles need additional support, especially when you're working near one end.
Rather than building a separate jig, this V-block has a clever removable extension.
The extension is simply a section cut from one end of the original block.
Matching holes and dowels allow the two pieces to be reconnected when needed. The dowels are glued into only one side of the connection, leaving the other side free to separate.
This lets you position the extension farther away to support a long workpiece or reconnect the pieces when you want a compact V-block.
Use the V-Block at the Drill Press
The V-shaped cradle is also handy when drilling holes in round stock.
Instead of trying to balance a dowel on the drill press table, place it in the V-block and secure both the jig and workpiece with appropriate clamps.
The groove keeps the workpiece properly supported and helps prevent it from rolling as you drill.
A Versatile Workholding Jig for Your Shop
A basic V-block is already a useful shop accessory. Adding a protective kerf, end stop, and removable extension makes it even more practical.
Whether you're drilling dowels, planing octagonal stock, or supporting long spindles, this simple plywood jig provides a convenient way to keep awkward workpieces under control.
And because it's made from plywood scraps and a few dowels, it's an easy addition to almost any woodworking shop.
Wedge Bench Stop
Need another option for securing boards at your workbench? This clever wedge bench stop uses a tapered block and matching receiver to hold workpieces of different thicknesses.
Made from MDF or plywood scraps, it's easy to build, simple to use, and removable when you need a clear benchtop.
BUILD THE WEDGE BENCH STOP → A Simple Way to Hold Workpieces Without a Vise
