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3/8″ Ball Nose Spiral Bit – 1/2″ Shank (AstraHP Coated)

AstraHP Coated Solid Carbide 3/8″ Tip Diameter 1/2″ Shank 1-1/4″ Length of Cut 3-1/2″ Overall Length Made In USA #row-485842347 > .col > .col-inner { padding: 20px 0px 20px 0px; } #section_1042186157 { padding-top: 45px; padding-bottom: 45px; } @media (min-width:550px) { #section_1042186157 { padding-top: 65px; padding-bottom: 65px; } } @media (min-width:850px) { #section_1042186157 { padding-top: 2px; padding-bottom: 2px; } }

3/8″ Ball Nose Spiral Bit – 1/2″ Shank (AstraHP Coated) - Main image
$72.99 $99.99 In stock

Category: Ball End Mill Ball Nose End Mills

1/2 x 3-1/2” Solid Carbide Ball End Mill with a .3750 (3/8″) cutting tip and a 1-1/4 inch length of cut. Perfect for milling plastic, wood and aluminum.

What is a Ball Nose End Mill?

Ball nose end mills, also known as full radius end mills or ball mills, are cutting tools where the nose radius is equal to half of the diameter of the tool. This creates a constant single radius (or ball) at the tool end with no straight edge (sharp corners) in the profile. They are used for contour milling, shallow slotting, pocketing and contouring applications. Ball nose mills are ideal for 3D contouring because they are less prone to chipping and leave a nice rounded edge.

Tip: Use a Roughing end mill first to remove large areas of material then proceed with a ball nose end mill.

Made in the USA by Bits & Bits.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Leo ★★★★★

Switched from HSS to this solid carbide ball nose for aluminum parts and the finish is noticeably smoother right off the machine. The AstraHP coating seems to handle heat well even at higher feed rates.

Adam ★★★★★

Cut a batch of maple trays with this and the finish off the ball tip was glass smooth, no sanding needed. The AstraHP coating is holding up great after several aluminum passes too, still slicing like day one.

Isabella ★★★★★

Ran this bit through a batch of walnut and the AstraHP coating kept it cool and chip-free the whole time. The 1-1/4" length of cut gave me enough reach for deeper pockets without chatter. Finish off the machine needed almost no sanding.