PROTO J503/16S2 Starter Punch
The PROTO Starter Punch (MPN J503/16S2) is a 1/16 in tip diameter pin loosening punch with a 1/4 in hexagon shank width and 4 1/4 in overall length. Made of steel with a flat SAE design, it meets ASME B107.48 standards.
SKU 3G-OTH-735394
Also listed as: J50316S2 · J503 16S2 · J503-16S2
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
The PROTO Starter Punch (MPN J503/16S2) is a 1/16 in tip diameter pin loosening punch with a 1/4 in hexagon shank width and 4 1/4 in overall length. Made of steel with a flat SAE design, it meets ASME B107.48 standards.
Frequently Asked Questions
What is a PROTO starter punch used for?
A PROTO starter punch is used to begin loosening tight pins or aligning holes in metal assemblies. Its 1/16 in tip diameter concentrates force precisely, making it essential for maintenance and repair tasks across industrial machining, fabrication, and assembly operations.
What are the specifications of the PROTO J503/16S2 starter punch?
The PROTO J503/16S2 starter punch has a 1/16 in tip diameter, 1/4 in hexagon shank width, and 4 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 and deliver them to your facility, ensuring compliance with local import requirements.
How to select the right starter punch size?
Select a starter punch with a tip diameter slightly smaller than the pin you need to drive. For the PROTO J503/16S2, the 1/16 in tip suits small pins. Always match the shank width to your hammer face to avoid damage, and choose steel for durability in repeated striking.
Used in
Common applications for PROTOPROTO 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.