12.2024 1 3 4 2 5 a +0,01 b +0,01 subject to alterations PUNCH WITH EJECTOR PIN, STEPPED, SHORT POINT Material: HSS Order No 268.3. Hardness: Shaft 64 ± 2 HRC Head 52 ± 5 HRC Description of FIBRO materials for tool and die components see at the beginning of Chapter E. Execution: Punch head hot upset-forged. Shaft and shoulder precision plunge-ground. Key flats parallel with longest size of shape, unless otherwise specified. Note: With kerf ≤ 0.04 mm, FIBRO rounds off sharp edges for shape 1 and shape 2 if the punch and piercing die bushing are ordered together. This reduces the fitting time and the risk of an edge break during operation. d1 +0,01 +0,4 k R9,5 +0,8 l 1 l 2 d2 h6 +0,2 d 3 268. d2m5 19 radiussed d1 d2 d3 k l2 amin l1 60 71 80 90 100 1.6 - 4.9 5 8 5 7 1.6 ● ● ● ● ● 2.3 - 5.9 6 9 5 7 2.3 ● ● ● ● ● 3.2 - 7.9 8 11 5 13 3.2 ● ● ●● ● 4.8 - 9.9 10 13 5 13 4.8 ● ● ● ● ● 4.8 - 12.9 13 16 5 13 4.8 ● ● ● ● ● 5.5 - 15.9 16 19 6.4 13 5.5 ● ● ● ● ● 5.5 - 19.9 20 23 6.4 13 5.5 ● ● ●● ● 6.5 - 24.9 25 28 6.4 13 6.5 ● ● ●● ● 268. Punch with ejector pin, stepped, short point Ordering Code (example): Punch with ejector pin, stepped, short point = 268.3. Shaft diameter d2 13 mm = 1300. Length l1 60 mm = 060. Cutting form FORM square = 1. Cutting form width a 4.8 mm = 0480. Cutting form length b 4.8 mm = 0480 Order No = 268.3. 1300. 060. 1. 0480. 0480
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