“Core Bit Extension – 6″ Long, 1-1/4″ Dia. – 7 Thread” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × 1-3/4" x 2" Thin Wall Marble & Granite Diamond Core Drill Bit $278.99 Quantity $278.99 × 1-1/8x18 Ship Auger Heavy Duty Wood Drill $89.99 Quantity $89.99 × 37 - Extra Length Drills - 8" Overall Length - 5-1/2" Flute Length $26.99 Quantity $53.98 × 1-1/16x18 Ship Auger Heavy Duty Wood Drill $84.99 Quantity $84.99 × Core Bit Extension - 12" Long, 1-1/4" Dia. - 7 Thread $190.99 Quantity $190.99 × 1-7/32 - Reduced Shank Drills With Flatted Shank - 6" Overall Length - 3" Flute Length $99.99 Quantity $99.99 × 1-3/8" x 2" Thin Wall Marble & Granite Diamond Core Drill Bit $214.99 Quantity $214.99 × 1-7/64 - Reduced Shank Drills With Flatted Shank - 6" Overall Length - 3" Flute Length $87.99 Quantity $87.99 × 1-5/8 - Reduced Shank Drills With Flatted Shank - 6" Overall Length - 3" Flute Length $325.99 Quantity $325.99 × Core Bit Extension - 6" Long, 1-1/4" Dia. - 7 Thread $176.99 Quantity $176.99 Update cart Cart totals Subtotal $1,604.89 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 $1,604.89 - Proceed to checkout