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3G Electric
PROTO J505/16S2 Starter Punch - Pin Loosening Punches
PROTOPin Loosening Punches

PROTO J505/16S2 Starter Punch

The PROTO Starter Punch (1/8 in Tip Dia) is a pin loosening punch with a hexagon, steel, flat SAE shank (5/16 in wide, 5 1/4 in overall length). It meets ASME B107.48 standards. 3G Electric interprets your demand for…

SKU 3G-OTH-735379

Also listed as: J50516S2 · J505 16S2 · J505-16S2

Brand
PROTO
Item
J505/16S2 Starter Punch
Part Number
J505/16S2
Category
Pin Loosening Punches
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J505/16S2
Type
Hexagon, Steel, Flat, SAE
Overall Lg
5 1/4 in
Shank Wd
5/16 in

Technical Documents

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

Product Description

The PROTO Starter Punch (1/8 in Tip Dia) is a pin loosening punch with a hexagon, steel, flat SAE shank (5/16 in wide, 5 1/4 in overall length). It meets ASME B107.48 standards. 3G Electric interprets your demand for industrial tools across 14 departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump and FBR.

Frequently Asked Questions

What is a PROTO starter punch used for?

A PROTO starter punch is used to begin driving out pins, dowels, or fasteners in metal assemblies. Its 1/8 in tip diameter concentrates force for initial loosening, making it essential in automotive, manufacturing, and maintenance applications where precise pin removal is required.

What are the specifications of the PROTO J505/16S2 starter punch?

The PROTO J505/16S2 starter punch has a 1/8 in tip diameter, 5/16 in hexagon shank width, and 5 1/4 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 PROTO starter punches worldwide?

3G Electric supplies PROTO starter punches worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine PROTO tools across 14 departments, including punches, and deliver to any international destination. Contact us for pricing and lead time.

How to select the right starter punch size?

Select a starter punch with a tip diameter slightly smaller than the pin you are driving. For the PROTO J505/16S2, the 1/8 in tip suits small pins. Ensure the shank width (5/16 in) fits your hammer face. Always use safety glasses and a hammer with a striking face larger than the punch head.

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
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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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