Mayhew Pro 9-Piece Metric Pin Punch Set | 66252

Meets the requirements of JLR (Jaguar Land Rover)

Product Overview

The Mayhew Pro 9-Piece Metric Pin Punch Set (Part Number: 66252) is a professional-grade, American-made hand tool collection engineered for precision mechanical, automotive, and industrial maintenance. Designed specifically to drive out and displace dowels, roll pins, and solid rivets after they have been initially broken loose with a starter punch, this comprehensive set covers the most essential metric sizes from 1.5 mm up to 10.0 mm.

Manufactured in the USA from premium heat-treated high-alloy steel, the Mayhew 66252 set delivers maximum tensile strength, dimensional stability, and resistance to tip mushrooming or shank bending under heavy hammer strikes. Each punch is coated in a corrosion-resistant black oxide finish and comes housed in a rugged, anti-slip canvas roll-up pouch for convenient workshop organization and field storage.

Key Features

• Made in the USA: Proudly crafted by Mayhew Steel Products in Turners Falls, MA, adhering to strict industrial quality tolerances and manufacturing standards.

• High-Alloy Steel Construction: Specially heat-treated for optimal hardness and longevity, preventing premature wear, shank bending, or tip deformation during demanding driving operations.

• Black Oxide Protection: Treated with a durable black oxide coating to withstand workshop moisture, resist chemical corrosion, and prevent long-term rust.

• Precision-Machined Tips: Flat, square-cut tips ensure solid, non-slip contact against pin ends, preventing accidental damage to the pin, fastener, or surrounding bore wall.

• Convenient Organization: Includes a heavy-duty, anti-slip canvas tool pouch with marked individual slots for rapid size identification, tool protection, and easy transport.

• MayhewPro Lifetime Warranty: Backed by Mayhew’s comprehensive manufacturer lifetime warranty against defects in materials and craftsmanship.

What's Included in the Set (Part # 66252)

Note: The set also includes one (1) custom-fitted, roll-up anti-slip canvas storage pouch.

Ideal Use Cases & Applications

• Automotive & Fleet Repair: Driving out brake caliper retaining pins, transmission linkage pins, shift forks, and suspension components.

• Industrial Machinery Maintenance: Disassembling gearboxes, pulleys, shaft collars, hydraulic cylinders, and automated manufacturing equipment.

• Firearm Maintenance & Gunsmithing: Safely removing and installing trigger group pins, bolt carrier retaining pins, and receiver assemblies without scarring metal finishes.

• General Fabrication & Metalworking: Precision alignment, extraction, and installation of metric dowel pins and fasteners in jigs, fixtures, and structural frames.

Common Questions (FAQs)

Q: What is the difference between a pin punch and a starter punch?
A: A starter punch (or drift punch) features a tapered, reinforced shank designed to withstand heavy, initial hammer blows to break frozen, rusted, or tight pins loose without bending. A pin punch (such as those included in the Mayhew 66252 set) features a straight, uniform shank designed to follow the pin through the bore and drive it completely out of the hole after it has been loosened by a starter punch.

Q: Can these punches be used on roll pins and spring pins?
A: While standard flat-tipped pin punches can be used to drive out roll pins once loosened, Mayhew recommends using specialized Pilot Punches (roll pin punches featuring a small center alignment nipple/ball) for hollow tension pins. This prevents a standard flat punch edge from collapsing or flaring the hollow outer wall of a roll pin.

Q: Are Mayhew pin punches made in the USA?
A: Yes. The Mayhew 66252 9-Piece Metric Pin Punch Set is manufactured entirely in the United States using premium domestic alloy steel.

Q: How should I maintain the black oxide finish on these tools?
A: To maximize corrosion resistance, wipe the punches clean with a dry rag after use and occasionally apply a light coat of machine oil or a corrosion-inhibiting tool spray before storing them in their canvas pouch.

Q: What should I do if a punch bends or breaks?
A: MayhewPro series tools are backed by a Lifetime Warranty. If a punch fails due to a defect in craftsmanship or metallurgy under normal working conditions, it can be replaced through an authorized Mayhew distributor or directly through Mayhew’s customer service department.

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