1,000 Bushings for Pre-Punched Hole or 1-11/32" (34.1 mm) Diameter Hole Punched by 710
- Triple lock design holds bushing securely
- Locks securely into metal studs from 24 gauge to 12 gauge (0.6 mm to 2.5 mm)
- Helps protect wire insulation from sharp edges of metal studs
- Makes pulling smooth and easy by preventing hang-ups of cable on raw metal edges
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