Bore Polisher Test Kit BP With B3 And B4 Series Polisher Heads And QC5 Mandrel Fits Five Eighths Inch To One Inch Bores Internal Diameter Polishing Kit For Shop Pros Pro Grade Performance
✔️ Includes 10 bore polishers, 2 Mini Grind-O-Flex wheels, mandrels
The Bore Polisher Test Kit BP provides heads for 5/8" to 1" (15.9 mm to 25.4 mm), 1" to 4" (25.4 mm to 101.6 mm), and 2" to 5-7/8" (50.8 mm to 149.2 mm) bores, plus mandrels for 1/4" (6.35 mm) chucks. It’s built for cleaning, deburring, and polishing interior diameters from 1" to 5" (25.4 mm to 127 mm) in shop settings.
✅ B-3 Series bore polishers have three abrasive packs 1-1/2" wide (38.1 mm) bonded to the hub; for 5/8" to 1" bores (15.9-25.4 mm). Use QC-5 Mandrel
✅ B-4 Series bore polishers have four abrasive packs 1-1/2" wide (38.1 mm); for 1" to 4" bores (25.4-101.6 mm). Use BPM-4 Mandrel
✅ B-8 Series bore polishers have eight abrasive packs 1-1/2" wide (38.1 mm); for 2" to 5-7/8" bores (50.8-149.2 mm). Use BPM-8 Mandrel
✅ Kit contents: 10 bore polishers, 2 Mini Grind-O-Flex wheels, and mandrels for 1/4" chuck machines (6.35 mm).
✅ Applications: cleaning, deburring, and polishing cylinder bores
💡 What is a bore polisher test kit used for in precision cylinder work?
It’s handy for cleaning, deburring, and finishing bore surfaces to improve fit and longevity.
- Covers a wide bore range with dedicated head sets for each size- Uses compatible mandrels for easy setup on common machines
- Includes multiple abrasive packs and wheel options for different finishes
- Helps achieve consistent, smoother bore finishes in engine blocks and cylinders
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