PROTO J503/8S2 Hexagon Starter Punch, 3/8 in Shank, 5-3/4 in Overall Length
The PROTO Starter Punch (SKU J503/8S2, MPN J503/8S2) is a 3/16 in tip diameter pin loosening punch with a 3/8 in hexagon shank width and 5 3/4 in overall length. Made of steel with a flat SAE design, it meets ASME…
SKU 3G-OTH-735383
Also listed as: J5038S2 · J503 8S2 · J503-8S2
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 (SKU J503/8S2, MPN J503/8S2) is a 3/16 in tip diameter pin loosening punch with a 3/8 in hexagon shank width and 5 3/4 in overall length. Made of steel with a flat SAE design, it meets ASME B107.48 standards for industrial alignment and disassembly tasks.
Frequently Asked Questions
What is a PROTO starter punch used for?
A PROTO starter punch is used to begin loosening tight pins or aligning components in industrial assembly and disassembly tasks. Its 3/16 in tip diameter and flat SAE design make it suitable for precision striking in machining, material handling, and maintenance applications across 14 industrial departments.
What are the specifications of the PROTO J503/8S2 starter punch?
The PROTO J503/8S2 starter punch has a 3/16 in tip diameter, 3/8 in hexagon shank width, and 5 3/4 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 a PROTO starter punch worldwide?
3G Electric supplies the PROTO J503/8S2 starter punch to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this ASME B107.48 compliant punch.
How to select the right starter punch for industrial use?
Select a starter punch based on tip diameter matching the pin size, shank shape for grip, and overall length for reach. The PROTO J503/8S2 with a 3/16 in tip and 3/8 in hex shank suits SAE fasteners. Ensure the punch meets ASME B107.48 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.