1. For deep hole machining
2. Shank is 3/4" diameter 4" length
3. Material: 20CrMnTi / JIS-SCM415
4. Made from alloy steel hardened to HRC56-60
5. This tool holder accepts all ER11 collets
6. Run out: ≤0.00008"
C ER/M straight tool holders for mechanical spindle and cutting tool and other accessory tool connection.
Is a simple, popular spindle shank connection standard, mainly C8, C10, C12, C16... Etc.. Mold industry, and high-speed engraving machine, used more. ER/M straight shank is longer, suitable for deep hole processing.
Comprehensive inspection way of chuck:
Surface of the clamping inner hole is grinding by high speed inner-aperture grinder, and inspect by standard pneumatic measurement instrument, the big end contact area rate is above 90%.
TYPE A / TYPE M / TYPE UM ARE DIFFENT, WHICH CAN BE JUDGED BY THEIR APPEARANCE
◎ Material: 20CrMnTi / JIS-SCM415, Surface hardness: 58±2 HRC.
◎ Shank is longer, suitable for deep hole processing.
◎ Outer diameter and other parts after grinding, eliminate the unbalanced allowance, conducive to the stability of the cutting
◎ Can reduce to the selection of lengthen cutting tool, reduce cost and improve efficiency
◎ Run out: ≤0.00008"
Cryogenic Treatment
◆ -384.8℉ long cryogenic, nearly all of the residual austenite into martensite.
◆ Carbide precipitation of Nanoscale particles, increasing the hardness and toughness.
◆ Reducing residual stresses.
◆ Wear resistance significantly improved.
Thermal Aging Processing
◆ long stereotyped thermal limitation removal of grinding residual stress.
Extension for Machining Deep Hole
◆ Solve the difficulty in machining deep hole.
| Brand Name | chongde | Style Name | C3/4"-ER11-4" |
| SKU | CD010136-1911102 | Collet size | ER11 |
| Through Coolant | YES | Shank Diameter (C) | 3/4" |
| Net Weight | 0.46 lbs | Collet Nut Diameter (D) | 0.748" |
| Gross Weight | 0.64 lbs | After pulling thread(T2) | 3/8"-16 UNC |
| Meas | 1.1" × 1.1" × 6.0" | Shank Length (L1) | 4" |