4-1/4" 240 Aluminum Oxide TwistFlex Cylinder Hone for 4"- 4.27" Bores

Pro-Graad

4-1/4" 240 Aluminum Oxide TwistFlex Cylinder Hone for 4"- 4.27" Bores

Name: 4-1/4" 240 Aluminum Oxide TwistFlex Cylinder Hone for 4"- 4.27" Bores
Brand: Pro-Graad
SKU: B0CTGS5J6D
Price: 53.24 USD
Availability: InStock

✅ In stock ⭐ Lowest price we've tracked

Grade

💤 Not a Deal

24/100

Current Price

$53.24

Listed $20.99

Analysis Confidence 55%

⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.

Check Deal at Amazon

Price verified Sep 21, 2026 9:57 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal

💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
💰The current price sits right around what this item typically fetches.
📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 0/28

Recent Value 0/22

Market Standing 0/20

Deal Strength 20/20

Momentum 4/10

📝 Product Overview

🏪 Sold by DABYNOLOGY, LLC

📦 Fulfillment Fulfilled by Amazon

🚚 Shipping Free Shipping

Product Details

✓[IN THE BOX]: 1 each Pro-Graad TwistFlex Size: 4 1/4" 4.25" (108mm) Bore Diameter, Grit: 240 Aluminum Oxide, Working Length of Brush 3.5" (90mm), Shank Diameter 0.354" (9mm), Overall Length 13.5" (343mm). for USE ON BORE DIAMETERS 4" - 4.27" (101-108mm).

✓[ALUMINUM OXIDE ABRASIVE]: for Engine Cylinders, Brake Cylinders, Hydraulics and Valve Guides. Ideal choice for Aluminum, Brass, Bronze, and Other Softer Non-Ferrous Materials. This 240 Grit Aluminum Oxide TwistFlex Cylinder Hone also excels at deglazing Nikasil Cylinders.

✓[BUILD]: The Pro-Graad TwistFlex 4-1/4" 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. The tool is self-centering, self-aligning and self-compensating to produce a consistent finish throughout the life of the tool.

✓[DESIGN]: 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.

✓[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 600, however optimum range is 300-500 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 10-55 strokes.