Keyboard: + zoom in, - zoom out, 0 reset
Compatible ER Collet Accessories
Specifications
Material & Construction
Material: High-grade steel with precision-ground threads. Thread accuracy: 6H tolerance class ensuring proper fit with ER collet holders. Designed for high-speed rotation and reliable clamping force.
Technical Information
Available in 6 different nut types to accommodate various machine spindle configurations and space requirements: • ER-A: Standard type nuts for general applications • ER-UM: Ultra-Mini nuts for compact tool holders • ER-M: Mini profile nuts for reduced clearance requirements • ER-MS: Mini-Slim nuts combining compact design with standard performance • GER: Extended nuts for special applications requiring additional length • GSK: Special application nuts with unique dimensional characteristics All nuts feature precision-ground threads and balanced construction for smooth operation at high RPM. Compatible with standard ER spring collets.
ER Nuts
ER Nuts - Secure Your Collet and Tool **THREADS ONTO HOLDER - Compresses collet to grip tool** ER nuts thread onto the ER tool holder and compress the collet to grip the cutting tool. Different designs for different applications. AVAILABLE TYPES: ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ┌──────────┬─────────────────────────────────────────────────┐ │ Type │ Description & Use │ ├──────────┼─────────────────────────────────────────────────┤ │ ER-A │ Standard (large) - Most common, easy to grip │ │ ER-M │ Mini - Reduced OD for tight spaces │ │ ER-MS │ Mini-Slim - Even smaller for very tight access │ │ ER-UM │ Ultra-Mini - Minimum diameter for max clearance│ │ GER │ Extended thread engagement for heavy duty │ │ GSK │ German standard nuts │ └──────────┴─────────────────────────────────────────────────┘ AVAILABLE SIZES: • ER11A/M/MS: Thread M13×0.75P, OD 16-19mm • ER16A/M/MS: Thread M19×1.0P, OD 22-27mm • ER20A/M/MS: Thread M22×1.5P, OD 27-30mm • ER25M/MS/UM: Thread M28×1.5P, OD 34-35mm • ER32M/MS/UM: Thread M40×1.5P, OD 42-48mm • ER40UM: Thread M45×1.5P, OD 50mm HOW TO USE: 1. Insert collet into holder with tool 2. Thread nut onto holder (hand tight) 3. Use matching ER spanner to tighten 4. Tighten to 25-35 Nm (or hand tight + 1/4 turn) ⚠️ IMPORTANT: Match nut type to holder! • A-type holders need A-type nuts • M-type holders need M-type nuts • UM-type holders need UM-type nuts WHEN TO USE MINI/SLIM: • Tight workpiece clearance • Deep pocket machining • 5-axis work with interference concerns COMPATIBLE WITH: • All ER Tool Holders (BT, SK, HSK, Straight Shank) • ER Collets (matching size) • ER Spanners (matching type) 24 variants | Price: €1.58 - €6.38
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.
No variants match the selected filters.
Try adjusting your filter selections.
No variants match the selected filters.
Try adjusting your filter selections.
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
Login to Purchase
Sign in to see prices, stock availability, and add items to your cart.
Please select specifications above to see details
Last viewed products