H3291 Shelf Support Boring Jig   See larger image and other views  Your Price:** $13.95 Customers who purchased this item also purchased: H3290 Drawer Slide Boring Jig $13.95 H3361 Clear Shelf Supports - 12 pk. $1.50 H0987 7 pc. Split Ring Depth Stop Set $4.95 Description Make standard in-line shelf support layout and drilling easy with this Shelf Support Boring Jig. Made for drilling 5mm holes. Requires 5mm (13/64") drill bit and depth stop. See page 477 of our 2008 Grizzly Catalog! See similar items in: > Home > Hardware > Shelf Supports Final prices will include state sales tax for items shipped to WA, MO, or PA. Shipping charges for items not shipped via truck freight will be added according to our shipping rates.