D 5 (0.20 ") 5 (0.20") 5 (0.20 ") 5 (0.20") 6 (0.24 ") E 100 (3.94") 112 (4.41 ") 138 (5.43") 148 (5.83 ") 187 (7.36 ") F 55 (2.17") 64 (2.52 ") 77 (3.03") 86 (3.39 ") 82 (3.24") G 110 (4.33 ") 130 (5.12") 144 (5.67 ") 168 (6.61") 207 (8.15 ") H 147 (5.79") 176 (6.93 ") 172 (6.77") 186 (7.32 ") 226 (8.94") mounting screw holes 4H-? 9.0 (M8 before lock) 3H-? 11.0 (M10 front lock ) + 3H-M10xP1.5 (M10 after lock) 3H-? 11.0 (M10 front lock) + 3H-M10xP1.5 (M10 after lock) 3H-? 11.0 (M10 front lock) + 3H-M10xP1.5 (after M10 lock)? 11.0x6 (M10 front lock) work collet 5C collet (US regulations) 16C collet (US regulations) B42 collet (DIN6343 173E) B60 collet (DIN6343 185E) B80 collet (DIN6343 193E) highest speed RPM 3600 2800 2500 2000 1500 Working pressure 3-8kg / cm2 (43-113psi) 3-8kg / cm2 (43-113psi) 3-8kg / cm2 (43-113psi) 3-8kg / cm2 (43-113psi) 3 -8kg / cm2 (43-113psi) maximum clamping diameter of 26mm (1.02 ") 40mm (1.57") 42mm (1.65 ") 60mm (2.36") 80mm (* ") piston area 130cm2 (20.2in2) 155cm2 (24.0in2) 278cm2 (43.1in2) 304cm2 (47.2in2) 427cm2 (66.2in2) clamping force 3465kgf @ 7kg / cm2 (7623lbf @ 100psi) 4078kgf @ 7kg / cm2 (8971lbf @ 100psi) 5572kgf @ 7kg / cm2 (12258lbf @ 100psi) 6072kgf @ 7kg / cm2 (13358lbf @ 100psi) 8440kgf @ 7kg / cm2 (18568lbf @ 100psi) Chuck NW 10kgs (22lbs) 14kgs (31lbs) 17kgs (37lbs) 21kgs (46lbs) 34kgs (71lbs) rotary chuck, hydraulic chuck, chuck spike spot chuck