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A small brass cutting tip with a tapered one-piece design and a single central orifice

Miller-Smith Equipment

Miller-Smith Equipment MC12-1 Cutting Tip 1/2 to 5/8 In Thick

SKU CH-JY97-K6637

Acetylene cutting tip for 1/2 to 5/8 in steel, medium preheat, 75 to 81 scfh oxygen, 45 to 50 psig

  • TypeWelding Parts & Supplies
  • Cuts 1/2 to 5/8 in steel with MC12-1 tip
  • Medium preheat flame suits acetylene handheld torches
  • Oxygen flow 75-81 scfh for clean cutting
  • Fuel pressure 10 psig acetylene for stable flame
  • Fits AC309, CC509P, DG109A, MC505, MC509 attachments

SMITH MC12-1 Cutting Tip for Acetylene

This one-piece cutting tip handles steel from 1/2 to 5/8 in thick using acetylene fuel and a medium preheat flame. It fits handheld torches that accept the MC12 series and works with AC309, CC509P, DG109A, MC505 and MC509 cutting attachments.

Sustained cutting performance

Oxygen flow runs at 75 to 81 scfh during the cut with a 9 scfh preheat flow, while acetylene preheat draws 7 scfh at 10 psig. These rates stay steady through long cuts without the tip overheating or losing focus.

Thermals noise and power draw

The tip operates at 45 to 50 psig oxygen pressure with no moving parts, so it runs silently and adds no electrical load. Heat stays concentrated at the flame, leaving the torch body cool during normal use.

Highlights

  • Cuts 1/2 to 5/8 in steel with MC12-1 tip
  • Medium preheat flame suits acetylene handheld torches
  • Oxygen flow 75-81 scfh for clean cutting
  • Fuel pressure 10 psig acetylene for stable flame
  • Fits AC309, CC509P, DG109A, MC505, MC509 attachments

Specifications

BrandSMITH EQUIPMENT
TypeWelding Parts & Supplies

Questions about this item

How much oxygen does the MC12-1 tip consume during a full day of cutting?

The tip draws 75 to 81 scfh of oxygen while cutting and 9 scfh during preheat, so a full day’s usage depends on how long the torch stays lit.

Which torch bodies and cutting attachments accept the MC12-1 tip?

It fits Smith-compatible attachments AC309, CC509P, DG109A, MC505 and MC509 on a handheld torch.

Will the MC12-1 work with my older Smith MC505 cutting attachment?

Yes, the MC505 is listed as a compatible cutting attachment for this tip.

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