Brass mandrels are made to fit my proprietary sintered diamond carving bits.

The stem is 6 mm and the heads is 6.5 mm. Each comes with a Stainless steel screw and washer. Thread is M4.

These for Ultratec quill.

Price is US $30 when bought at the same time as the diamond bits and US $40 when purchase separately. Shipping is extra to be determined by postal code.

Payment is via Paypal. I will need your full name, email and shipping address and a phone number. Shipping is insured with tracking.

If in stock shipping is within couple of days, if not 5-6 weeks.