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Compatible ER Collet Accessories
Specifications
Material & Construction
Material: High-grade steel construction with corrosion-resistant coating. Ergonomic non-slip rubber handle for comfortable grip and precise torque control.
Technical Information
ER Spanners are essential tools for working with ER collet systems. Available in 6 different types to accommodate various ER nut configurations: • ERM: For ER-M type nuts • ER: For standard ER-A type nuts • WTG: For larger ER nuts (ER25, ER32, ER40, ER50) • ER/UM: For ER-UM ultra-mini nuts • GSK: For GSK special application nuts • ERMS: For ER-MS mini-slim nuts Each spanner is sized specifically for its corresponding ER nut type, ensuring proper fit and preventing damage to the nut surfaces.
ER Spanners
ER Spanners - Tighten and Loosen ER Nuts **THE WRENCH - Used to tighten/loosen ER nuts** ER spanners (wrenches) engage the flats or slots on ER nuts to provide the leverage needed for proper tightening. AVAILABLE TYPES: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ┌──────────┬─────────────────────────────────────────────────┐ │ Type │ For Nut Type │ ├──────────┼─────────────────────────────────────────────────┤ │ ER │ Standard ER-A nuts (castle nut style) │ │ ERM │ Mini ER-M nuts │ │ ERMS │ Mini-Slim ER-MS nuts │ │ ER/UM │ Ultra-Mini ER-UM nuts │ │ GSK │ German GSK style nuts │ │ WTG │ Special wrench style │ └──────────┴─────────────────────────────────────────────────┘ AVAILABLE SIZES: • ER11A/M spanner - For ER11 nuts • ER16A/M/MS spanner - For ER16 nuts • ER20A/M/MS spanner - For ER20 nuts • ER25/UM spanner - For ER25 nuts • ER32/UM spanner - For ER32 nuts • ER40/UM spanner - For ER40 nuts • GSK10/16/20/25/32/40 - For GSK style HOW TO USE: 1. Place spanner over ER nut flats/slots 2. Turn clockwise to tighten (install tool) 3. Turn counter-clockwise to loosen (remove tool) 4. Recommended torque: 25-35 Nm ⚠️ MATCH SPANNER TO NUT TYPE! A-type spanner ≠ M-type nuts (won't fit!) PROPER TIGHTENING: • Hand tight + 1/4 turn with spanner • Or use torque wrench: 25-35 Nm • Don't over-tighten! Damages collet COMPATIBLE WITH: • ER Nuts (matching type and size) 21 variants | Price: €2.42 - €37.66
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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