M12 R8 ER20 MILLING COLLET CHUCK TOOL HOLDER

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SKU: R8ER20M

$29.99

M12 R8 ER20 MILLING COLLET CHUCK TOOL HOLDER

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M12 R8 ER20 MILLING COLLET CHUCK TOOL HOLDER

MODEL R8 TOOL HOLDER  RUN OUT (TIR) 0.0002″
HOLDER TYPE ER COLLET CHUCK GAGE LENGTH 1.3″
SHANK TYPE R8 ARBOR  DRAWBAR THREAD M12

REPLATED R8 COLLET CHUCK

MODEL THREAD GAGE LENGTH CLAMPING TYPE COLLET NUT TYPE ORDER NO
R8 ER11 7/16-20 1.3″ ER11 HEX. R8ER11IN
R8 ER16 7/16-20 1.5″ ER16 HEX R8ER16IN
R8 ER16 M12 1.4″ ER16 HEX R8ER16M
R8 ER20 7/16-20 1.5″ ER20 HEX R8ER20IN
R8 ER20 M12 1.5″ ER20 HEX R8ER20M
R8 ER25 7/16-20 1.5″ ER25 UM R8ER25IN
R8 ER25 M12 1.5″ ER25 UM R8ER25M
R8 ER32 7/16-20 2″ ER32 UM R8ER32IN
R8 ER32 M12 2″ ER32 UM R8ER32M
R8 ER40 7/16-20 2.2″ ER40 UM R8ER40IN
R8 ER40 M12 2.2″ ER40 UM R8ER40M

 Material Application

a. Quenched and tempered structural steel: The carbon content of this type of steel is generally about 0.25% to 0.55%. For structural parts of a given cross-sectional size, when quenched and tempered along the cross-section during quenching and tempering (quenching and tempering), the mechanics The performance is good. If the hardening is not penetrated and free ferrite appears in the microstructure, the toughness decreases. For steels with a tendency to temper brittleness, such as manganese steel, chromium steel, nickel-chromium steel, etc., they should be cooled quickly after tempering. The quenching critical diameter of this type of steel increases with the increase in grain size and alloying element content. For example, 40Cr and 35SiMn steel are about 30-40mm, and 40CrNiMo and 30CrNi2MoV steel is about 60-100mm, which is often used in manufacturing Structural parts such as shafts and connecting rods with large loads.

b. Surface hardened structural steel: used to manufacture hard and wear-resistant surface parts and flexible parts, such as gears and shafts. In order to increase the toughness of the core of the part, the carbon content in the steel should be low, generally 0.12 to 0.25%, and there is also an appropriate amount of alloy elements to ensure proper hardenability. Nitrided steel also needs to add alloy elements (such as Al, Cr, Mo, etc.) that are easy to form nitrides. Carburized or carbonitrided steel, after carburizing or carbonitriding at 850~950℃, quenched and used under low-temperature tempering (about 200℃). The nitrided steel is directly treated by nitriding (480~580℃), and it is no longer quenched and tempered.

Weight 1.5 lbs
Dimensions 15 × 45 × 65 in
Measurement system

Inch (in)

Product Category

Collet Chuck Tool Holder

Shank Type

R8

Collet Series

ER20

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