Stainless Steel Perforated Flask
Drilled-wall stainless steel investment-casting flask in 304/316/310 grade, Ø2″–6″ and 3″–18″ tall, with or without a flange.
- 304 / 316 / 310 grade
- With or without flange
- Cross / parallel / single bar

The perforated flask is a stainless steel casting cylinder with a drilled wall that lets steam and gas escape quickly during burnout, so the investment vents evenly. Indco Tools rolls it from ERW or seamless stainless pipe and finishes it in our own Mumbai workshop.
It is offered with or without a top flange, and with a locating bar across the opening to hold the wax tree, in cross bar, two parallel bar, or single bar configurations. With-flange flasks add a 7–8 mm flange (outer diameter B + 1″) and are welded top and bottom with submarine-grade TIG.
Product gallery
Reference photographs showing finish and construction.


Engineering drawings
Dimensioned drawings for each variant. Images are watermarked and provided for reference; contact us for a quotable specification.


With flange
7–8 mm top flange, Ø(B + 1″), submarine-grade TIG welded top & bottom.
Without flange
Plain perforated cylinder for open-frame and clamp setups.
Bar options
Cross bar · two parallel bars · single bar, each 12 mm wide × 3 mm thick.
Order perforated flask
Choose your specification and send it straight to our sales team. Need a custom size or OEM packing? Add it in the notes. We respond within one business day.

