About This

• What's Included: 1 each Pro-Graad Heavy Duty TwistFlex Size: 4 1/2" 4.5" (114mm) Bore Diameter, Working Length of Brush 5.98" (152mm), Shank Diameter 0.40" (10.2mm), Overall Length 13.5" (343mm). FOR USE ON BORE DIAMETERS 4.15" - 4.5". This 320 Grit Silicon Carbide TwistFlex Cylinder Hone excels in re-ringing and final bore processes, and is an ideal choice for finish honing for racing or moly rings.
• The Pro-Graad TwistFlex 4 1/2 Cylinder Honing & Deburring Tool is manufactured oversized - ORDER BY THE BORE SIZE. Brush will be approximately ten percent oversized, but will easily conform and fit into the bore size diameter due to the flexibility of the honing tool stems.
• Pro-Graad TwistFlex Cylinder Honing & Deburring Tool brushes have round abrasive spheres fastened to ends of flexible stems, which produces pressure and finishing evenly and consistently. With a working brush length of 5.98”, this Heavy-Duty Version Features 30% More Abrasive Honing Globules as compared to a standard cylinder hone.
• [VERSATILE APPLICATION]: The Pro-Graad TwistFlex Cylinder Honing & Deburring Tool can be run with hand tools, drill press, or CNC equipment. Apply a lubricant liberally such as a honing tool lubricant, 10-30 weight motor oil, or transmission fluid prior to using honing tool brush. Max RPM is 1200, however optimum range is 600 - 800 RPM. Tip: If producing cross-hatching pattern, less is best - maximum of two passes should be done with brush within 20-45 seconds of total run time, averaging between 10-55 strokes.
• The 4.5 inch TwistFlex Cylinder Honing & Deburring Tool is self-centering, self-aligning and will conform to the bore diameter to provide consistent surface finishing, as well as deburring any cross-drilled holes. The brush is self-compensating to produce a consistent finish throughout the life of the tool.
• [PRODUCT GUARANTEE]: All Pro-Graad products are made with quality materials, which exceed industrial grade standards. We are driven to deliver high-quality, high-performing products to the end user. This is why we stand behind our 100% Product Guarantee. If you are not satisfied with the product, simply return your purchase within 30 days, and we will replace or refund your order. Pro-Graad is an American Company with US Based Customer Support.

Overview

• Material : 320 Grit Silicon Carbide
• Brand : Pro-Graad
• Grit Material : Silicon Carbide
• Bristle Type : Flexible nylon stems bonded with abrasive globules
• Grit Type : Fine