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Specifications
Material & Construction
Material: High-grade Steel, Hardness: HRC58-62
Understanding QTY & Sizes - ER Collet Diameters
Each set includes multiple ER collets with different diameters. The QTY & Sizes specification shows the number of collets included and their diameter range in millimeters.
Note: Blue badges indicate ER16/ER20/ER32 collets (smaller sizes), green badges indicate ER40 collets (larger sizes).
BT-ER Collets Chuck Sets
BT-ER Collets Chuck Sets - Complete Ready-to-Use Kits **TYPE: Complete sets with BT holder + ER collets included** AVAILABLE CONFIGURATIONS: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ BT30 Sets: • BT30-ER16-70L + 8pcs collets (3-10mm) • BT30-ER32-70L + 18pcs collets (3-20mm) BT40 Sets (Most Popular): • BT40-ER16-100L + 8pcs collets (3-10mm) • BT40-ER20-100L + 11pcs collets (3-13mm) • BT40-ER32-70L + 18pcs collets (3-20mm) • BT40-ER32-100L + 18pcs collets (3-20mm) • BT40-ER40-80L + 23pcs collets (4-26mm) • BT40-ER40-100L + 23pcs collets (4-26mm) BT50 Sets: • BT50-ER32-100L + 18pcs collets (3-20mm) • BT50-ER32-150L + 18pcs collets (3-20mm) • BT50-ER40-100L + 23pcs collets (4-26mm) • BT50-ER40-150L + 23pcs collets (4-26mm) Thread Sizes: M12-1.75P, M16-2.0P, M24-3.0P ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ SET CONTENTS: ✓ 1x BT Tool Holder (specified size) ✓ Full set of ER Collets (1mm increments) ✓ 1x ER Nut (pre-installed) ✓ Storage box/rack WHY BUY A SET: • Cost savings (15-25% vs buying separately) • Guaranteed compatibility • Complete range of collet sizes • Ready to use immediately • Great for new machine setup RECOMMENDED SETS: ┌─────────────────────────┬──────────────────────────────────┐ │ Your Machine │ Recommended Set │ ├─────────────────────────┼──────────────────────────────────┤ │ Small VMC (BT30) │ BT30-ER32-70L (18pcs, 3-20mm) │ │ Standard VMC (BT40) │ BT40-ER32-100L (18pcs, 3-20mm) │ │ Large tools needed │ BT40-ER40-100L (23pcs, 4-26mm) │ │ Heavy duty (BT50) │ BT50-ER40-100L (23pcs, 4-26mm) │ └─────────────────────────┴──────────────────────────────────┘ ⚠️ NOTE: Sets may NOT include retention knob (pull stud). Order the correct pull stud type separately for your machine! WHAT ELSE YOU NEED: • Retention Knob (Pull Stud) - Type A/B/C/D/E for your machine • ER Spanner for tightening 30 variants available | Price: €50.96 - €203.76
Select Specifications
φ(d)=Cutting Diameter | R=Radius | D=Shank Diameter | I=Cutting Length | L=Overall Length | All in mm
D=Diameter | L1, L2, L3=Length Dimensions | L=Overall Length | D1=Shank Diameter | All in mm
Select blade width, groove depth (T), and working radius range to find the right Face Groove tool
Select boring diameter range, shank diameter (D), and insert type (C=diamond/T=triangular) to find the right boring head
Select CBA model (complete boring range) and internal boring range to find the right micro finish boring head
Select LBK model (matches your CBA boring head) and extension length to find the right extension rod
Select BT type (spindle taper), LBK number (locking block socket), CBA head model, and projection length (L1) to find the right boring head shank
HRC≤56 is recommended for best price/performance ratio with newest nano-black coating technology.
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SKU / Article Number
D (Diameter)
L1
L2
L3
L (Overall)
D1
Insert Code
Insert Count
h
b
H
F
L
L1
f
Insert
Blade Width
Blade Height
Groove Depth
Orientation
Working Radius Range
Compatible Inserts
φ(d)
R
D
I
L
Morse #
H7 Tolerance
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