6 Flute Adjustable Hand Reamer 21-23mm H8 High Speed Steel Straight Flute

Product Details ① High-Speed Steel Construction: Crafted from high-speed steel with H8 precision, offering durability, high hardness, good toughness, wear resistance, and high temperature resistance for extended tool life. ② Adjustable Cutting Diameter: Adjustment range of 21mm - 23mm (cutting diameter) enables flexible hole enlargement across various projects and material types. ③ 6 Straight Flutes Design: Straight flutes facilitate efficient chip and debris escape, ideal for shallow cuts while ensuring hole roundness, straightness, and concentricity. ④ Versatile Applications: Suitable for enlarging, smoothing, or finishing holes in stainless steel, cast iron, aluminum, non-ferrous metals, plastic, and wood; ideal for hole repair, pipe fittings, and woodworking tasks. ⑤ Manual-Operation Compatibility: Hand-operated via wrench, T-handle wrench, extension rod, or drill chuck, suitable for light cutting, stock removal, or simple hole enlargement. ⑥ Uncoated for Broad Use: Features an uncoated base substrate, compatible with tapping fluid or cutting oil for lubrication to reduce friction and enhance tool longevity. Specifications ① Material: High-Speed Steel (HSS) ② Accuracy: H8 ③ Adjustment Range: 21mm - 23mm (Cutting Diameter) ④ Flute Length: 69mm / 2.72 inches ⑤ Square Shank Size: 10.8mm / 0.43 inches ⑥ Overall Length: 195mm / 7.68 inches Packing List ① 1 x Adjustable Hand Reamer Warm Tips ① Lubrication: Use tapping fluid or cutting oil during operation to reduce friction and extend tool life. ② Storage: Store in a dry, clean environment to prevent rust and preserve sharpness. ③ Handling: Ensure proper alignment when using with wrench, T-handle wrench, extension rod, or drill chuck for safe operation. ④ Material Caution: Only use on listed materials (stainless steel, cast iron, aluminum, non-ferrous metals, plastic, wood); avoid unlisted materials.