High Precision CNC Tool Holder Milling Chuck BT30 type with Spring Collet

Quick Detail:

High Quality Alloy Steel Which is special for tools holder

Good Heat-Treatment,Hardening and Tempering.

Manufactuered by High Precision CNC Turning and Grinding Machine.

Use Spring Collet,ER Collet

Very Popular BT30 Type.

1 piece packing.

Description:

Speical material for tools holder,produced by high Precision CNC turning machine and Grinding Machine.use ER Collet(Spring Collet),very popular type. BT30/BT40/BT50,JT30/JT40/JT50

Applications:

Fit for Milling,Drilling,Fit for End Mills,Drills and Reamer,taps and so on.

Specifications:

BT30-ER11-60

BT30-ER11-100

BT30-ER16-70

BT30-ER16-100

BT30-ER20-60

BT30-ER20-100

BT30-ER25-60

BT30-ER25-100

For Nuts,UM type and A type

UM type: with six flute (BT30-ER25UM-100)

A  type: with six angle(BT30-ER25A-100)

Note:  there are three kinds of quality to Choose.

1. Grade:A

Material:40Cr,

Hardness:HRC:48-50°,

Fir for withing 4000RPM

Precision:0.01mm

Black Surface

2. Grade:AA

Material:40Cr,

Hardness:HRC:50-52°,

Fir for  4000-8000RPM

Precision:<=0.005mm

Bright Surface

It’s very High Cost Performance.

3. Grade:AAA

Material:20CrMnTi  (it’s same with famouse brand in the world)

Hardness:HRC:58-60°,

Fir for  >10000RPM

Precision:0.003-0.005mm

Keeping Balance for each holder

Bright Surface

Competitive Advantage:

Good Quality,Competitive price.Help the agent to get the get more large market