Here's a closer look at a prototype SM4 54•14º in Oil Can finish.

Got wedges? As the SM4 tour seeding begins, the tour reps will be building wedges and working with players to dial-in their specs. 

As boxes of new Prototype SM4 Vokey Design Wedges arrive on the Tour Van, you know it's going to be a busy and exciting week of wedge building for Vokey Tour Rep Aaron Dill.

Here's a view from the front. Three more scoring lines equals more ways for you to go low.

Here's another shot of the prototype SM4 wedges. This is the tour-only Raw finish.

Master Craftsmen Bob Vokey hits the range with a special delivery. Titleist Brand Ambassador Robert Karlsson gets some new tools and a first-hand account from The Voke.

The grinder. These wheels will see some work this week as the Vokey Team dials-in prototype wedges for some of the best players in the world.

Let's zoom in on the sole.

Check out the new grooves. The prototype SM4 will deliver maximum spin and control.

Let's get in close.