“Core Bit Extension – 12″ Long, 5/8″ Dia. – 11 Thread” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × 3/16 x 2-1/4 Diamond Boring Drill Bit for Hard Tiles & Ceramics $11.99 Quantity $11.99 × Dry Core Bit Adapter - Adapts 1/2" Shank To 5/8" - 11 Thread $159.99 Quantity $159.99 × Wet Core Bit Sub Adapter - 5/8" - 11 Female Thread At Top 1-1/4" - 7 Male Thread At Bottom $347.99 Quantity $347.99 × Core Bit Extension - 6" Long, 1-1/4" Dia. - 7 Thread $176.99 Quantity $176.99 × Core Bit Extension - 12" Long, 5/8" Dia. - 11 Thread $144.99 Quantity $144.99 Coupon: Apply coupon Update cart Cart totals Subtotal $841.95 Shipping Enter your address to view shipping options. Calculate shipping Country / region Select a country / region… United States (US) State / County City: Postcode / ZIP: Update Tax $0.00 Total $841.95 Proceed to checkout