Center Plug for HSK63F, HSK63E & HSK50F Tool Holders


dust plug for HSK63F tool holder

Typically, HSK chucks are supplied with a hole through the interior of the cone. The hole is designed to help aid in the release of the chuck from the motor housing. For some customers who are having concerns about contamination and/or dust entering into the motor, there is a solution! GUHDO offers an inexpensive “Plug” that can be quickly installed. Once inserted, the plug becomes integrated with the chuck and will not affect the integrity of the chuck, motor or tooling. This is an inexpensive, simple and easy solution! As a reminder, it is recommended to thoroughly clean your chucks, collet nuts and collets on a regular basis…………………remembering to install NEW collets (ER25, ER32, ER40, SYOZ25 & RDO35) every 500 machine hours!

To buy HSK63F tool holders now, click here!


dust plug for HSK tool holder

Item# 6375.000.00

The HSK 63 Tool Holder

HSK Tool holder, collet, nut and spiral bit

The HSK 63 high-speed tool holders are made for use on precision CNC routers and machining centers, as well as point-to-point machines with automatic tool changers.  The HSK tool holding system was developed in Germany as a set of standards and performance criteria for advanced machining where precision is imperative. HSK shank styles range from  A through F with the principle difference being the size of the taper. The HSK 63 tool holders lead to improved quality and productivity as the tool holders are designed to be perfectly symmetrical,our tool holders are precision balanced to G2.5 specification, in accordance with DIN69893 . Additionally, they are anti-rust treated and made from the highest quality steel, case hardened to 58±2 HRC,  with a runout tolerance of <0.003 mm.

HSK 63 F Toolholder

HSK 63 F Toolholder

The HSK 63 F style tool holder is the most popular for woodworking machinery and it comes in several variations, depending on which collet system is being used.  ER32 collets have a max tool shank diameter of up to 3/4″ while ER40 and RDO 35 (SYOZ25) collets come in up to a 1″ tool shank diameter.  Generally, the ER collets are used on Italian made machines such as SCM, (Routech, Morbidelli) Biesse, Busellato etc.  The RDO collets (which have a closer tolerance) are mostly used on the German made machines such as Weeke, Homag, HolzHer, and also on the Northwood, Onsrud and Anderson.  The tool holders are interchangeable between machines, so if someone having an SCM Routech CNC machine needs to run a tool with 25mm shank and won’t have the ability with the tool holders that came with the machine, a new tool holder for RDO or ER40 collets is all that is needed! We suggest using tool holder nuts that utilize ball bearings to ensure chatter and slippage are minimized while precision machining.

HSK 63 F Tool Holder

HSK 63 F Tool Holder