CAT40-ER20 4" Collet Chuck & ER20 12ps/set Metric Collet Set, Range: 2.0- 13.0mm

Metric ER Collet 2mm to 13mm by 1mm ER-20 Collet 12 Pcs/Set in Fitted Strong Aluminium Box, #3350-0583

• Size from 2 mm to 13 mm by 1 mm
• Total 12 ps/set
• Features:
  • Range of 0.039''
  • Made from alloy spring steel and hardened to HRC 44-48
  • All collets are checked its runout individually on 4 points on a testing rod
  • For size 3.0mm and larger the runout is 0.0003'' (0.008mm)
• Under size 3.0mm the runout is 0.00059" (0.015mm)
• In fitted strong Aluminium Box

CAT40 ER20 V-Flange Collet Chuck Projection Length 4'' Range 1/8'' - 1/2'', #1601-0030

• For ER20 Collet
• Made of alloy forged steel, hardened to HRC 52-56
• Draw Bar Thread 5/8-11
• Taper: CAT40; Collet Series: ER32; Projection Length: 4''; Range: 1/8''-1/2''
• All critical surface are precision ground
• Concentricity is less than 0.0001'' from taper to end mill pocket
• Packed in Fitted Box
• 8000 RPM