Bosch 1617evs router. the 1/4 in chuck collet has a diameter of .550 in. the opening in the shaft is .500. how to fit?

I suspect you are seeing the part that makes the collet work. The tapered part of the collet fits a taper in the router spindle. As you tighten it, the taper works like a wedge to compress the collet. That's what the slots are for. Please forgive me if you already knew all this and you actually have a defective collet!

Will this collet fit my model 1614 Bosh plunge router

Thank you for your question. The 2610906283 Collet only works with 1613 series, 1617 series, 1618 and 1619 series routers. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

How does the 1/4 collet fit on a 1617EVS router?

You unscrew the 1/2” inch collar and then screw on the 1/4” inch collet

Will this fit the bosch pr10e colt

Thank you for your question. The 2610906283 1/4" collet is for our full size 1617EVS series router, the 2610008122 is the 1/4" collet for our colt palm routers like the PR10E. https://www.amazon.com/Bosch-2610008122-Collet-Chuck-4-Inch/dp/B00NQUI440/ref=sr_1_1?s=hi&ie=UTF8&qid=1487026814&sr=1-1&keywords=Bosch+2610008122 If you have further questions please feel free to contact our Bosch Customer Service Representatives at 1-877-BOSCH-99 (1-877-267-2499)

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BOSCH 2610906283 1/4" Collet Chuck for 1613-,1617-, 1618- & 1619- Series Routers

BOSCH 2610906283 1/4" Collet Chuck for 1613-,1617-, 1618- & 1619- Series Routers

Product ID: 124747836

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Details

Brand
Bosch
Item diameter
0.25 Inches
Material
Stainless
Thread size
1/4 inch

🔩Compatible with 12+ Bosch router models

⚙️Precision 1/4" collet size

🇺🇸Made in USA quality

Description

🔧 Upgrade your routing game with Bosch precision – because your craft deserves the best!

TRUSTED BOSCH QUALITY - Backed by Bosch’s reputation and 4.5-star user satisfaction, ensuring professional-grade results every time.
SEAMLESS COMPATIBILITY - Works flawlessly with Bosch 1613, 1617, 1618, 1619 series routers and select MRF/MRP models.
EFFORTLESS INSTALLATION - Includes a chuck key handle for quick, secure bit changes—get back to work faster.
DURABLE AMERICAN CRAFTSMANSHIP - Proudly manufactured in the USA using premium stainless steel alloy for long-lasting reliability.
PRECISION FIT FOR PEAK PERFORMANCE - Engineered for exact 1/4" bit holding to maximize routing accuracy and reduce vibration.

The BOSCH 2610906283 1/4" Collet Chuck is a high-precision, durable router accessory designed specifically for Bosch 1613, 1617, 1618, and 1619 series routers. Made in the USA from stainless steel alloy, it ensures secure bit holding and compatibility across multiple Bosch models, delivering professional-grade performance trusted by thousands of users.

Specifications

ASIN	B0009H5MPC
Best Sellers Rank	163,346 in DIY & Tools ( See Top 100 in DIY & Tools ) 855 in Router Accessories & Parts
Brand	Bosch
Capacity	6.35 Millimetres
Compatible Devices	1613, 1613EVS, 1613AEVS, 1617, 1617EVS, 1617EVSPK, 1618, 1618EVS, 1619EVS, MRF23EVS, MRP23EVS, MRC23EVSK
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (688)
Global Trade Identification Number	00000346277357
Handle Type	Chuck Key
Included Components	(1) 1/4" Router Collet Chuck
Item Diameter	0.25 Inches
Item Type Name	Bosch 2610906283 1/4" Router Collet Chuck
Manufacturer	Bosch
Material	Stainless Steel Alloy Steel
Model Number	2610906283
Part Number	2610906283
Thread Size	1/4 inch
UPC	000346277357
Unit Count	1.0 count

Reviews

A**R

Genuine Bosch with Amazon value for money

Genuine Bosch replacement and a great price from Amazon

19.07.2025

A**R

Great product

Replaced collet

9.11.2024

D**X

Didn't fit gkf600

Doesn't fit Gkf 600

24.01.2025

J**N

Doesn’t fit a Bosch advanced trim router

Well made but doesn’t fit a Bosch advanced trim router

29.12.2025

S**N

It also fit a newer Mastercraft router from Canadian Tire but not an old Craftsman.

16.08.2024

E**3

As you would expect these fit my Bosch Router perfectly

30.08.2024

C**S

Quedo excelente en la herramienta.

2.07.2024

V**A

excelente calidad

17.06.2024

F**K

I bought it to replace the collets in my Mastercraft Maximum Router. The bits sometimes slipped with the Mastercraft collets. I have had no issues with these replacement collets. This makes working with the router much safer. Very Happy with the Purchase

26.10.2023

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