O70 Wood Assembly Mandrels
O70 Wood Assembly Mandrels - O70A Small for Cornet and Trumpet is backordered and will ship as soon as it is back in stock.
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Warranty & Returns
Warranty & Returns
Standard tools manufactured by Ferree’s Tools include a one-year limited warranty against defects. Eligible standard products may be returned within 30 days of the invoice date with an approved RMA number. Returns after 30 days may incur a restocking fee, and returns are not accepted after 180 days. Custom-manufactured products cannot be returned.
Delivery and Shipping
Delivery and Shipping
Most in-stock products are prepared within 24 hours and shipped within 48 hours. Free standard shipping is available worldwide, with processing fees of $10 for domestic orders, $20 for Canada and Mexico, and $30 for other international destinations. Chemicals must ship by ground and cannot be shipped overseas. Expedited shipping is available for an additional charge.
Built for Musicians
Purpose-built tools and supplies designed for accurate, efficient instrument repair.
Description
Description
CHECK OUT THE NEW WOOD MANDRELS FOR THOSE LARGE INSTRUMENTS O75 IN THE SEARCH BAR!
Wooden Assembly Mandrels used to securely hold instruments during repairing or final assembling After lacquering. Made from Poplar.
Save 20% when you buy the set of 5
O70A Wood Assembly Mandrel, small for cornet and trumpet
O70B Wood Assembly Mandrel, medium for trombone
O70C Wood Assembly Mandrel, large for sax and baritone
O70D For Bass Trombone
O70E For Flugel Horn
O70S Set of 3 Wood Assembly Mandrels, (O70A, O70B and O70C)
O70SS Set of all 5 Mandrels A-E
Payment & Security
Payment methods
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Repair Knowledge at Your Fingertips
Explore helpful instructions, sizing charts, repair guides and videos created to help you choose the right products and work more confidently at the repair bench.
Frequently Asked Questions
How do I choose the correct size or model?
How do I choose the correct size or model?
Review the product specifications and measure your instrument or existing part when applicable. Because instrument models can vary, contact our team with the manufacturer, model and measurements if you need help confirming your selection.
Are Ferree’s Tools products for beginners?
Are Ferree’s Tools products for beginners?
Ferree’s Tools serves professional repair technicians, music educators and knowledgeable do-it-yourselfers. Required experience varies by product, so review all available instructions and contact us if you are unsure whether a tool is appropriate for your skill level.
What if I cannot find the exact product I need?
What if I cannot find the exact product I need?
Contact our customer service team with details about the instrument and repair. We can help you locate the appropriate product, identify a comparable option or determine whether another solution is available.



