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PROTO Hexagon Flat SAE Pin Loosening Punch - Pin Loosening Punches
PROTOPin Loosening Punches

PROTO Hexagon Flat SAE Pin Loosening Punch

The PROTO Starting Punch (SKU J501/2, MPN J501/2) is a pin-loosening punch with a 1/4 in tip diameter, 1/2 in shank width, and 6 1/2 in overall length. It features a hexagon, flat, SAE design for starter punch…

SKU 3G-OTH-735376

Also listed as: J5012 · J501 2 · J501-2

Brand
PROTO
Item
Hexagon Flat SAE Pin Loosening Punch
Part Number
J501/2
Category
Pin Loosening Punches
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Technical Specifications

PROTO
Manufacturer Part Number
J501/2
Type
Hexagon, Flat, SAE
Overall Lg
6 1/2 in
Shank Wd
1/2 in

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Starting Punch (SKU J501/2, MPN J501/2) is a pin-loosening punch with a 1/4 in tip diameter, 1/2 in shank width, and 6 1/2 in overall length. It features a hexagon, flat, SAE design for starter punch applications.

Frequently Asked Questions

What is a PROTO starting punch used for?

A PROTO starting punch is used to initially drive out pins, dowels, and other fasteners during disassembly. Its flat, hexagon tip design provides a stable striking surface for precise alignment in industrial maintenance and machining applications.

What are the specifications of the PROTO J501/2 starting punch?

The PROTO J501/2 starting punch has a 1/4 in tip diameter, 1/2 in shank width, and 6 1/2 in overall length. It features a hexagon, flat, SAE design and is manufactured by PROTO. This pin-loosening punch is suitable for starter punch tasks.

Where to buy a PROTO starting punch worldwide?

3G Electric supplies the PROTO J501/2 starting punch worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this pin-loosening punch to your facility. Contact us for availability and delivery to your location.

How to select the right starting punch size?

Select a starting punch with a tip diameter slightly smaller than the pin you need to drive. The PROTO J501/2 has a 1/4 in tip diameter and 1/2 in shank width, making it suitable for medium-duty applications. Always match the punch to the fastener size for safe, effective use.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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PROTO Products

3G Electric supplies PROTO pin loosening punches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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