Toolex Reamer - Stub Type - Spiral Flute - Straight Shank - HSS-E - H4 - 3.79mm finishes drilled holes to ISO H4 tolerance with a stub profile designed for precise, repeatable bore finishing. Manufactured by Toolex Ltd, this tool pairs robust HSS-E (M35 cobalt) with a left-hand spiral flute and right-hand cutting for consistent results in demanding materials. Diameter: 3.79 mm Type: Stub-type reamer Flute: Spiral flute; left-hand spiral Cutting: Right-hand cutting Shank: Straight Material: HSS-E (M35 cobalt) Standard/Tolerance: DIN 8089; ISO H4 Manufacturer: Toolex Ltd. Lead Time: Manufactured to order; despatch in 24/48 hours This reamer is designed to deliver tight hole size control with reliable wear resistance, thanks to its HSS-E composition. The left-hand spiral flute aids swarf evacuation, while the straight shank simplifies clamping in standard toolholders. Because the item is manufactured to order, you’ll receive a freshly ground reamer tailored to the specified bore size, with a production window that helps you manage project timelines. Note that stock status refers to blanks in stock for manufacturing, not finished tools ready to ship.