BETEX Impact 39 FITTING TOOL SET PART NUMBER: TB-FT399900-4 By using the impact resistant plastic collets made of unbreakable sheet material (instead of easily breaking injection moulded collets), damage to the shaft and metal-to-metal contact is avoided. The sets can be used for bore diameters of 10 to 60 mm or parts thereof. Impact is also suitable for safe, precise and quick mounting of other machine parts, like bushings, sealing rings, cam wheels and pulleys. Specs: With 39 rings, suitable for ±600 bearings. Your Benefits: Quick, precise and safe mounting No more damage to shafts, bearing houses or sealing rings Extended life cycle of bearings The impact resistant plastic collets are made of unbreakable sheet material, contrary to easily breaking injection molded collets. The collet numbers are clearly engraved and colored, to avoid mistakes.