Shop Categories › Offset and 3" Notching Shim Kit Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Offset and 3" Notching Shim Kit $12.95 This shim kit allows you to do offset notching and extend your SYNC tube notcher to 3" capacity Add To Cart Added! This shim kit allows you to do offset notching and extend your SYNC tube notcher to 3" capacity You Might Also Like Tube Notching Shaft $65.00 Half Nut for SYNC series Notchers $11.00 Starrett Hole Saws from $11.95 Arbor Adapter Kit (5/8" and 1/2" hole saws) $14.95 Machinist Bevel Protractor $59.95