I definitely should have read the reviews before buying. As others have said, there is no precision with this device. There are at least two oblique axes - the first is the angle between the block and the alignment line on the plastic window. It can be manually retracted to 90 degrees and easily moved while drilling. The second is the size of the pilot hole - it's too big and doesn't fit neatly in the drill. All this leads to a terrible seizure.
π Carriage Prime Line Products GD52103
6 Review
πͺ Strong and Versatile: National Hardware N222 406 Square Bolts for Secure Fastening
7 Review
Premium Eapele 4X4 Wood Fence πͺ΅ Post Anchor Base: Secure Your Fence with Ease
8 Review
π© 5-Pack of M8x60mm Stainless Steel External Hex Expansion Bolts by Yasorn
10 Review