Klingspor 40345 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Wood & Metal)

Klingspor 40345 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Wood & Metal)

The Klingspor 40345 LS 309 XH is a 3″ x 18″ aluminum-oxide sanding belt built for portable belt sanders that see mixed material work. Its X-weight cotton backing provides the stability needed for flat sanding and edge work on hardwoods while still flexing for curved pieces. A close-coat abrasive layer and resin bonding deliver steady cutting pressure on wood, metals, and NF metals without loading as quickly, producing an even 80-grit scratch that’s easy to blend or step down for finishing.

For jobsite and shop use, the belt’s F5 glued overlapped joint tracks smoothly and resists seam lift during aggressive passes. Crews can move from door and frame prep to weld blend-outs and plate deburring with the same belt line, keeping inventory simple. The LS 309 XH platform also covers common grits from coarse stock removal through intermediate prep, making it a dependable choice for day-to-day sanding tasks on wood, steel, aluminum, and painted or varnished surfaces.

Klingspor 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt At a Glance

• 3″ x 18″ Size: Fits popular portable belt sanders for shop and field work.
• 80 Grit Aluminum Oxide: Balanced removal rate and surface finish on wood and metals.
• X-Weight Cotton Backing: Durable, stable support for flat sanding and edges.
• Close-Coat Coverage: Dense grain placement for faster, more uniform cutting.
• Resin Bonding: Withstands heat and pressure in continuous use.
• F5 Glued Overlapped Joint: Smooth tracking with reduced chatter on handheld sanders.
• Universal Material Range: Works on wood, metals, NF metals, and paint/varnish/filler.
• Pack-Ready: Sold by each; (10) belts per pack available for bulk purchasing.

Markets

• Construction & Renovation: Door trimming, stair treads, and site touch-ups on wood and steel.
• Wood Processing & Cabinet Shops: Panel dimensioning, edge band flush-outs, and part prep.
• Metal Fabrication: Weld blending, deburring, and coating prep on steel and aluminum.
• Automotive & Small Engine: Gasket surface cleaning and bracket shaping.
• Facility & Municipal Maintenance: Mixed repair tasks where one belt must cover wood and metal.
• Trade Schools & Training Labs: Demonstrates abrasive selection and belt sander setup.

Across these users, reliability and material flexibility matter. Wood shops get a consistent scratch pattern that sands out evenly across grain and end-grain. Fabricators benefit from the close-coat cut that bites into scale and light welds while staying controllable on thin stock. Maintenance crews appreciate a cloth-backed belt that holds together on corners and staples but still conforms to profiles. With the 3 x 18 format, technicians can carry a small stack to handle door rehabs, railing touch-ups, and bracket cleanup without switching platforms or stocking multiple belt lines.

Klingspor 40345 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Wood & Metal) Features

• Aluminum Oxide Grain: Versatile cut on wood, metals, and NF metals.
• Close-Coat Abrasive Layer: Maximizes contact area for faster stock removal.
• Resin Bond System: Heat-resistant adhesion supports longer belt life.
• X-Cotton Backing: Strong, dimensionally stable cloth for predictable results.
• F5 Glued Overlapped Joint: Low-profile seam for smooth operation and finish quality.
• Portable Sander Focus: Optimized for handheld 3 x 18 belt sanders.
• Wide Grit Selection: Covers coarse shaping through intermediate finishing.

Klingspor 40345 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Wood & Metal) Includes

• (1) 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Sold by each; pack size units: (10) available for bulk purchasing.)

Klingspor 40345 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Wood & Metal) Specifications

• Brand / Series: Klingspor LS 309 XH
• Article Number: 40345
• Belt Size: 3″ x 18″ (75 mm x 457 mm)
• Grit: (1) 80
• Grain Type: Aluminum Oxide
• Coating: Close
• Bonding Agent: Resin
• Backing: X-Cotton (cloth)
• Joint Type: F5 Glued Overlapped
• Type of Use: Portable belt sander
• Available Grits (this size): 40, 50, 60, 80, 100, 120, 150, 180, 240
• Item Weight: 0.04 lb
• Item Width (in): 3
• Item Length (in): 18
• UPC: 4014855045181
• Packaging Type: Paper package band (banderole)
• Order Minimum: (1) belt
• Package Quantity: (10) belts per pack option

Why Customers Choose the Klingspor 3″ x 18″ LS 309 XH 80 Grit X-Cotton Sanding Belt (Wood & Metal)

Crews select the LS 309 XH 80-grit sanding belt for dependable performance on a portable belt sander without juggling different product lines. The aluminum oxide grain and close-coat layout provide a steady cut on wood sanding and light metal finishing, while the X-weight cloth-backed belt tracks straight under pressure. Technicians get predictable removal and a uniform scratch that blends cleanly into 100–120 grits, cutting rework between steps. For shops that move between hardwood, steel, and painted parts, one 3 x 18 belt spec simplifies purchasing and keeps tools working through daily prep and repair tasks.