1" X 30" Expanding Rock Anchor 36,000 lbs. Unlimited strength

Rock Anchors are installed into core holes bored into rock. The Rock Anchor is tightened along the anchor shaft to expand the resistance wedges into the rock.

To install anchor, drill a 12" deep hole in solid rock, put anchor in hole, turn rod until anchor expands and wedges in the hole.

• Anchor consists of two Malleable castings and a Triple Eye Anchor Rod.
• Anchor diameter is 2-1/4".
• Anchor size expanded is 3-1/8".
• Hole diameter is 2-3/8".
• The harder the pull on the rod, the tighter it wedges into the rock.

The Chance Expanding Rock Anchor is a big time, labor, and money saver . . . because, in most cases, there is no need to mix concrete, melt lead, or carry extra, bulky equipment to the job. Generally, the cost of installing the Expanding Rock Anchor is about 35% less than the old-fashioned grouting method. helix anchor, twist anchor, screw anchor. Expands from 2 1/4'' to 3 1/8''.