Products for bench top machinists | LittleMachineShop.com

Boring Head Arbor, Tormach TTS

Boring Head Arbor, Tormach TTS - Main image
$39.41 $57.95 In stock

Part of the Tormach Tooling System (TTS) this boring head arbor fits to 7/8-20 UN F mounted hears or other tooling with the 7/8-20 thread.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

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

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Eli Q. ★★★★★

Fits the 7/8-20 thread on my boring head without any wobble, and the TTS taper seats solidly in the spindle. Machined a few test bores and it held rigid the whole time. Glad I grabbed this instead of rigging up an adapter.

Miles ★★★★★

The 7/8-20 threads engaged perfectly with my boring head, no wobble at all. Installation was straightforward, and the TTS fit gives a solid, repeatable grip in the spindle. This arbor does exactly what it’s supposed to for drilling precise holes.

Joshua V. ★★★★★

Threads are tight and square, so the arbor seats without any wobble on the spindle. I’ve used it with a few different 7/8-20 heads and the fit is consistent every time. Solid little piece for the price.