GB312400BC FLEX-HONE, 3.500" (89mm) bore, 13.5" OAL, 400 Grit, Boron Carbide (BC) MPN:GB312400BC
GB312400BC FLEX-HONE, 3.500" (89mm) bore, 13.5" OAL, 400 Grit, Boron Carbide (BC)
The GB312400BC FLEX-HONE is a high-performance, 3.5-inch (89mm) bore tool ideal for honing and finishing engine cylinders, sleeves, and other bores. Made with 400-grit Boron Carbide (BC) abrasive, this tool effectively removes scratches and imperfections, restoring a smooth surface finish. Its long-lasting, durable construction and ergonomic design make it a valuable asset for engine builders, machinists, and mechanics. The FLEX-HONE's versatility allows for use in a variety of applications, including automotive, aerospace, and industrial settings, where precise bore finishing is critical. Its compact size and lightweight design make it easy to maneuver in tight spaces.
Top product features:
- 400 Grit surface for precise finishing and polishing
- Boron Carbide construction for durability and long tool life
- Hone surface for accurate and efficient deburring and smoothing
Top product applications:
- Honing cylinders and sleeves
- Polishing cylinder head ports
- Smoothing out rough engine bores
Flex Hone,3-1/2",89mm,400G Boron
Additional Information
- Country of Origin: US
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 18 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 14.00
- Package Width: 5.00
- Package Height: 5.00
- Package Weight: 1.00
- California Prop 65 Warning: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Product info last updated on January 13, 2026 1:17am UTC
Category: Buffing and Polishing