WakeMAKERS Thru-Hull Hole Saw Bits
Bimetal Hole Saw Bits are ideal for drilling thru hulls in your fiberglass boat and making quick work of your next ballast installation. Each hole saw has a high-speed steel cutting edge that's welded to a steel backing. The cutting depth is 1-1/2" and the arbor size is 7/16" hex.
*You will also need to order one 1/4" High Speed Pilot Drill. Only one pilot bit is needed, as it can be swapped amongst various size hole saws.
Please view our Installing Thru-Hull Fittings in a Boat Hull video for more information about using these hole saw bits.
- No Warranty
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This product can expose you to chemicals including DINP (Diisononyl phthalate) and DIDP (Diisodecyl phthalate) which are known to the State of California to cause cancer. For more information go to https://www.p65warnings.ca.gov.
Best Price Promise
We want you to receive the best possible deal on your boating products. We match any authorized dealer's advertised price for the same in-stock item. What does that mean for you? If you find the same product in stock at another authorized retailer we'll gladly match their price delivered price. Don't forget that on top of our free fast shipping (on any order over $99 shipped to the Continental US) we also offer our exclusive lifetime technical support.
- WakeMAKERS Best Price Promise is only valid on products sold by factory authorized internet dealers.
- WakeMAKERS Best Price Promise is not available with any coupons or individual discounts.
- WakeMAKERS Best Price Promise is based on the delivered price for the item and will factor in shipping and tax charges.
- WakeMAKERS Best Price Promise is only available on an exact, in stock product with a displayed internet price (not price implied after promotions and coupons)
- WakeMAKERS Best Price Promise is not available to be applied retroactively, so please contact us us BEFORE placing your order.
If you have any questions about our price match policy, or if you would like us to match a price for you, simply contact us.
Note We have the right to refuse price matching at any time for any reason. In order to qualify for price matching, the item must be identical make, model, year, and part number, and must be in stock. Price matching excludes sale items and previously purchased products.
365 Day Returns
365 Day Returns Your satisfaction is our biggest priority, which is why we gladly accept returns on any new product for up to 365 days from the date your order ships. Refunds will be issued to the original payment method. Returns on orders older than 30 days can be processed but will be completed for store credit in total of the returned item and not a return on the original payment method. Returns on orders older than 365 days cannot be processed and are unable to be accepted.
Option 1: To initiate a return, log in to your account and click on the "My Orders" tab on the left side of the page, navigate to the order or product you'd like to return and follow the instructions to return the item/s.
Option 2: Contact us via phone or email at firstname.lastname@example.org and we will provide you with a Return Merchandise Authorization number (RMA). Fill out the back of the packing slip that was included with your order, noting the RMA number where specified and include the packing slip with your shipment back to us. Returns without an RMA number and packing slip cannot be processed and will not be accepted. If you need a duplicate copy of the packing slip, contact us.
Returns will be processed within 3 business days after receiving them. Please note that it can take up to 10 business days (2 weeks) for the refunds to be posted to your original payment method.
*Returns for propellers, propeller pullers, custom ballast bags, blemished ballast bags, lengths of hose, lengths of wire, eFoil Batteries and any other custom modified product are not accepted. All sales on these products are final.
Our product experts bring over 40+ years of real-world experience and knowledge of the boating industry. They really know the gear, because they spend their free time out on the water with friends and family testing the products out.
Product Expert Phone Hours 9am - 5pm (PST) Monday - Friday
Product Expert Email We respond to most emails within 24-48 hours.
Looking for specific installation guides or instructional videos? Check out our Resource Section for detailed information.
WakeMAKERS Online Shopping Tools Our Finder tools are designed to help you pick the perfect product. We've simplified the complex process of finding the right ballast or prop for you boating style and made it easy by doing the research for you.
Our goal is simple; provide the best product, at the best price, with the best customer support.
Free Shipping On Orders Over $99
The last thing you want to do is pay to have your order shipped when shopping online, which is why we include free shipping on all orders over $99*.
*Free shipping offer applies to orders over $99 shipped within the Continental United States and cannot be combined with other discounts or promotions (including coupon codes).