ER20 3/4" Collet Chuck Tool Holders With Straight Shank 4"

Description

Short Description
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 ER20 collets
6. Run out: ≤0.00008"
Description
High Accuracy ，ER Straight Shank Collet Chuck
chongde ER20 3/4" Collet Chuck Tool Holders With Straight Shank 4"
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 C 8, C 10, C 12, C 16...
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, Surfac
e hardness: 58±2 HRC.
◎
Shank is longer, suitable for deep h
ole 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.
Technical Details
Brand Name
chongde
Style Name
C3/4"-ER20-4"
SKU
CD010136-1920102
Collet Size
ER20
Through Coolant
YES
Shank Diameter (C)
3/4"
Net Weight
0.73 lbs
Collet Nut Diameter (D)
1.338"
Gross Weight
0.90 lbs
After pulling thread
(T2)
3/8" -16 UNC
Meas
1.5"
×
1.5"
× 6.2"
Shank Length (L1)
4"
Additional Information