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*AstraHP Coated* Bits&Bits 425-ST250C – 1/4″ Low Helix Up-Cut Spiral Bit
$35.99
Low Helix up-cut spiral bits excel in plastics, acrylics and foam, and even work well in wood and plywood. Also called ‘open helix’ or ‘slow helix’, these low helix CNC bits have less twist than a standard bit, reducing material uplift while cutting. Also features a radiused corner of 0.001″.
- AstraHP Coated
- Solid Carbide
- Tip diameter: 1/4″
- Shank diameter: 1/4″
- Length of cut: 1″
- Corner Radius: 0.001″
- Overall Length: 2-1/2″
- Made in the USA
In stock
Excellent for Cutting:
- Plastic/Acrylic
- LED Back-lit and Side-lit displays and control panels
- Corian
- Fiberglass
- Corrugated Plastics such as Correx Boards and Polypropylene
- Dibond
- Plexiglas
- Hard/Soft wood
- Wood cabinetry and sign making
Made in the USA by Bits & Bits.
| Weight | 0.07 lbs |
|---|---|
| Brand | Bits & Bits |
| Shank | 1/4" |
| Cut Diameter | 1/4" (.25") |
| Cut Length | 3/4" |
| Cut Style | Up Cut |
| Overall Length | 2-1/2" |
Speeds & Feeds
This data serves as a general guidance only.
Soft/Hard Woods/ Plywood – Spindle Speed- RPM: 18-25KÂ – Feed Rate – IPM : 50-100″Â Â –Â Per Pass Depth:Â 1/16-1/8
Acrylic / Plastic – Spindle Speed- RPM: 18-22KÂ – Feed Rate – IPM : 50-90″Â – Per Pass Depth: 1/16 – 3/32
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