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Description
Technical data of the adjustable reamer 56-70 mm
| Technical data | |
|---|---|
| Diameter range Dmin-Dmax | 56-70 mm |
| Shank diameter d | 40,5 mm |
| Overall length L | 460.0 mm |
| Blade length l | 130.0 mm |
| Length of side of square drive k | 33 mm |
Adjustable reamer 56-70 mm NRZe for finish machining of cylindrical holes provides diameter and geometry control in steel, cast iron and non-ferrous alloys, designed for jobs requiring precise reaming of H7 holes.
Adjustment range of 56-70 mm is realized by segmented cutting bars and body made entirely of high-grade HSS. Radial adjustment with micrometric step and screw lock allows setting the dimension with allowance for cutting clearance; 45-degree insertion chamfer stabilizes the entry and reduces burr; 6-8-degree back relief promotes light cutting. The recommended allowance for finishing passes is 0.20-0.35 mm, and fine-pitch striking screws and symmetrical segment stripping facilitate repeatable adjustment and maintain cylindricity (typical Ra 0.8-1.6 µm).
- Repeatable dimension - adjustment within hundredths of a millimeter makes it easy to hit IT7-IT8 without additional passes.
- Stable cutting path - multi-cone geometry reduces vibration and runout, improving cylindricity and surface uniformity.
- Wide range - the 56-70 reamer covers several diameters in a single setting, reducing changeovers and calibrations.
- HSS durability - resistance to tempering extends the sharpening interval with proper cooling.
Dimensional conformity referenced to ISO 286-2 (H7/H8), and shape and position requirements are defined by EN ISO 1101; recommended control of radial runout of strips ≤ 0.02 mm in the working section.
The 56-70 mm NRZe adjustable reamer maintains the diameter within the tolerance field, provides predictable surface texture and allows wear compensation; the design of the NRZe adjustable reamer remains stable throughout the 56-70 mm range.
Product accessories
Metal drill bit 54 NWKc HSS DIN 345 Baildon
Reference: 0452 In stock > 10 items
€136.84
€168.32 brutto
Metal drill bit 64 NWKc HSS DIN 345 Baildon
Reference: 0461 In stock < 10 items
€226.32
€278.37 brutto
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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