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Front view of pneumatic valve lapping tool in a blue plastic case with rubber lapping heads and quick-connect fittingAngled view of open blue case showing air lapping tool with knurled metal rings and rubber cupsClose-up of lapping tool with ASTA A-AVL4 marking, knurled grips, air fitting and four rubber lapping headsLapper and rubber heads with inset closeups of air fitting, spindle tip, and adjustment knob

Air-Operated Pneumatic Valve Lapping and Grinding Tool Set with Four Suction Cups

Complete pneumatic valve lapper with adjustable regulator, four interchangeable suction cups (20-40mm), and hard case—ideal for engine valve maintenance and restoration.

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Description

Air-Operated Pneumatic Valve Lapping and Grinding Tool Set with Four Suction Cups

Brief Overview

This air-operated valve lapping tool delivers precise reciprocating motion for professional engine valve grinding and lapping operations. The set includes four interchangeable rubber suction cups (20, 30, 35, and 40 mm) to accommodate a wide range of valve sizes, making it a versatile addition to any automotive service or engine rebuild operation. Pair this lapper with complementary precision valve service tools for a complete valve reconditioning workflow.

Key Features

  • Reciprocating Motion: Consistent back-and-forth grinding action at 3000 rpm for smooth valve seat refinishing
  • Four Interchangeable Suction Cups: 20, 30, 35, and 40 mm diameters cover most common valve sizes
  • Adjustable Air Regulator: Fine-tune operating pressure for optimal control and consistent results
  • Quick-Connect Air Fitting: 1/4-inch inlet with standard quick-disconnect for easy shop integration
  • Knurled Grip Rings: Three metal grip sections provide ergonomic control during extended use
  • Professional-Grade Construction: Metal drive shaft, anodized black body, and sealed components built for shop reliability
  • Hard Carrying Case: Custom-molded blue plastic case protects the tool and accessories during transport and storage

Business Advantages for Resellers

High-Demand Service Category: Valve lapping is a core service in engine overhaul and restoration shops. This tool opens recurring revenue opportunities with mechanics and shops that perform this work regularly.

Complete Solution: Unlike standalone lappers, this set includes all four common cup sizes in one package, reducing the need for customers to source multiple tools. One purchase = full capability.

Durability & Reliability: The pneumatic design eliminates battery/electric concerns. Air-powered tools deliver consistent performance across shifts and seasons with minimal maintenance.

Competitive Margin: The combination of tool, four cups, and carrying case justifies a healthy distributor margin while remaining competitive against pieced-together solutions.

Shop Loyalty Driver: Resellers who offer complete valve service tool packages build customer relationships—mechanics return to suppliers who understand their workflow needs.

Technical Specifications

Specification Value
Operating Speed 3000 rpm
Air Consumption 100 L/min
Operating Pressure 90 psi (6.2 bar)
Air Inlet Connection 1/4-inch quick-connect
Suction Cup Diameters 20, 30, 35, 40 mm
Overall Dimensions 153.5 × 52 × 52 mm
Weight 1.5 kg
Carrying Case Hard molded plastic with custom-fit cavities

Why This Tool Matters

Engine valve reconditioning requires precision and repeatability. Manual lapping is labor-intensive and inconsistent. This pneumatic lapper removes the guesswork—the reciprocating motion combined with the adjustable regulator ensures uniform valve seat refinishing across multiple engines. For shops processing cylinder heads regularly, this tool justifies itself within weeks of use.

The compact size and low weight make it easy to position on workbenches or engine stands. The included suction cups fit the vast majority of automotive applications—from small 4-cylinder engines to larger displacement units. No need to buy separate cup sets; everything is in one case.


Call to Action for Your Customers:

Stock this lapping tool set in your inventory for customers who service engines in-house. Position it as the professional alternative to manual lapping stones—faster, more consistent, and less operator fatigue. The hard case signals quality and builds confidence that this is a serious shop tool, not a budget compromise.