JR Clancy Adjustable Combination Floor Blocks
- Used with individual wire guided, J-Guide or T-Bar sets
- Rope lock (010-533R) and floor block in a single unit
- ASTM Class 30 grey iron sheave, grooved for 3/4″ (19 mm) rope
- Sealed precision ball bearings
- Incorporates tie off points for guide wires
- Sheave position may be adjusted to properly tension the hand line
