Partial Purchases Accepted Buyers have the option to purchase individual units or partial quantities from the Drilling Equipment - Spec Sheet list. View Complete Inventory Click the Download link in the Related Documents section to see the complete list of inventory and detailed specifications. Click the Pictures link in the file to view all photos for each line item. · Drilling Spools - 13-5/8" 10M · Drilling Spools - 13-5/8" 10M · Drilling Spools - 13-5/8" 10M · Drilling Spools - 13-5/8" 5M