R8 Shank for Boring Head

Name: R8 Shank for Boring Head
Brand: ALOK INTERNATIONAL
SKU: 83378
Price: 6.09 USD
Availability: InStock
Rating: 4.6 (5 reviews)

$6.09 ~~$9.99~~ In stock

Category: Power Tool Accessories

R8 shank mandrel for Micro Mark Milling Machine 84630 and similar machines. Perfect match to our Boring Head 82762. Has 7/8" x 20 head threading and M12 x1.75 draw bar threading.

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Customer Reviews (4.6 / 5 · 5 reviews)

Grace ★★★★★ Oct 22, 2026

The draw bar threading matched my machine’s M12 spec exactly, so no adapter was needed—just screwed right on. It’s got that solid, snug feel when you tighten it down, which I appreciate for the price.

Owen ★★★★★ Oct 20, 2026

The 7/8" x 20 head threading was a perfect fit for my boring head, and the steel feels sturdy enough for repeated use in my mill. Installation was smooth with no wobble after tightening.

Robert S. ★★★★★ Oct 19, 2026

The M12 draw bar threading lined up with my mill's spindle on the first try, no fussing or forcing. The 7/8" x 20 head side seated cleanly against my boring head, and the whole setup runs true. Exactly what I needed for the 84630.