UJK Router Collet Extension (1/2" Shank)

UJK Router Collet Extension (1/2" Shank)

The UJK Router Collet Extension solves a common issue when using routers inverted in a table: even fully plunged, the collet often sits below the table surface, limiting cutting depth. This precision extension uses standard ER20 engineering collets, which grip over a 1mm diameter range without losing accuracy. Supplied with a 1/2" shank collet and compatible with 8mm, 1/4" (6.35mm), and 1/8" (3.2mm) shanks, it provides a safer, more stable cut with less vibration. The collet nut includes an ejection ring for fast, easy cutter changes, and the extension supports speeds up to 18,000 RPM. Tip: Insert the collet extension at least 2/3 of the way in and up to the K line.

For best practice always start your router on the slowest speed, test the cutter set up on a piece of scrap timber, increasing the speed gradually to get the best cut. Take note of any vibration that becomes apparent, reduce your router's speed if there is any vibration.

Key features

• Ideal for router table setups to maximize cutting depth
• Collet suitable for 1/2" shank cutters
• British made, CNC manufactured, stainless steel construction
• Secure grip all around the cutter for reduced vibration and safer routing
• Collet nut with ejection ring for quick cutter changes
• Maximum RPM: 18,000: body length: 40 mm: overall length: 75 mm
• Collet nut requires 27 mm spanner
• Additional collets available for multiple shank sizes

Specification

• Brand: UJK
• Code: UJK-211367
• Packed size: 14.5 x 4 x 4 cm
• Weight: 180 g
• Made in: the UK

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• UJK Professional Cast Iron Router Table Top
• UJK Portable Trim Router Table
• UJK Double Horizontal Featherboards

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