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PROTO Starter Punch: 3/32 in Tip Dia, 1/4 in Shank Wd, 5 in Overall Lg, Hexagon - Pin Loosening Punches
PROTOPin Loosening Punches

PROTO Starter Punch: 3/32 in Tip Dia, 1/4 in Shank Wd, 5 in Overall Lg, Hexagon

The PROTO J501/4S2 is a 3/32 in tip diameter starter punch with a 1/4 in hexagon shank width and 5 in overall length, made of steel with a flat SAE design. It meets ASME B107.48 standards for pin loosening applications.

SKU 3G-OTH-735393

Brand
PROTO
Item
Starter Punch: 3/32 in Tip Dia, 1/4 in Shank Wd, 5 in Overall Lg, Hexagon
Category
Pin Loosening Punches
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Technical Specifications

PROTO
Manufacturer Part Number
J501/4S2
Type
Hexagon, Steel, Flat, SAE
Overall Lg
5 in
Shank Wd
1/4 in
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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO J501/4S2 is a 3/32 in tip diameter starter punch with a 1/4 in hexagon shank width and 5 in overall length, made of steel with a flat SAE design. It meets ASME B107.48 standards for pin loosening applications.

Frequently Asked Questions

What is the PROTO J501/4S2 starter punch used for?

The PROTO J501/4S2 starter punch is used to begin loosening pins in industrial assemblies. Its 3/32 in tip diameter and flat SAE design allow precise alignment before driving, making it essential for maintenance tasks across machining, material handling, and power transmission applications.

What are the specifications of the PROTO J501/4S2 starter punch?

The PROTO J501/4S2 has a 3/32 in tip diameter, 1/4 in hexagon shank width, and 5 in overall length. It is made of steel with a flat SAE design and meets ASME B107.48 standards. The hexagon shank prevents rolling on work surfaces.

Where to buy the PROTO J501/4S2 starter punch worldwide?

3G Electric supplies the PROTO J501/4S2 starter punch worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this tool to your facility. Contact us for availability and lead time on orders.

How to select the correct starter punch for pin loosening?

Select a starter punch with a tip diameter slightly smaller than the pin, like the PROTO J501/4S2's 3/32 in tip. Ensure the shank width matches your hammer face and the overall length provides clearance. A hexagon shank, as on this PROTO punch, improves grip and stability.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

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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