Keystone Engineering
Keystone Wedge Lock Micro Drum for Wirtgen W210i Triple Blocks. Micro 4 Wrap Double Hit Wedge Lock Drum with Triple Blocks. Micro-Milled Surface. Micro-Milling Drums for all Wirtgen Machines. Micro-Milling for Surface Prep and Prepaving Grinds. Micro-Milling in California with Keystone's Wedge Lock Micro-Milling Drum.