Features: 1. Long handle body suitable for deep hole machining 2. It can reduce the use of longer tools, which can reduce costs, improve efficiency 3. Tighten the nut straight, high rigidity, strong clamping 4. Made of high quality 40 chromium and durable Specification: Color: Silver and Black Material: 40 chromium (40CR) Model: C20-ER25UM-100L Hardness: HRC46-50 Brand name: CNBTR Accuracy: 0.01 Collet nut: ER25UM Overall Size: 143 x 42mm/5.63" x 1.65" (L x OD) Shank length: 100mm/3.94" Shank OD: 20mm/0.79" Shank ID: 13mm/0.51" Collet Nut OD: 42mm/1.65" Collet Nut ID: 21mm/0.83" Total Length: 143mm/5.63" Weight: 382g Package Content: 1 x CNC Straight Shank Collet Chuck (The unique MPN label on each inner package, which confirms it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us when you need assistance.)
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