Finish precision holes with Guhring HR 500 reamers
This selection covers HR 500 S series 1685 and HR 500 D series 1686 solid-carbide reamers with nano-A coating. Compare the exact EDP, finished diameter, H7 tolerance, body dimensions and coolant arrangement.
Match the hole condition
HR 500 S 1685 uses axial coolant delivery for blind-hole applications. HR 500 D 1686 uses radial coolant delivery for through-hole applications. Match the tool to the required coolant path and selected configuration.
Plan the finishing allowance
Reaming is a finishing operation. Review pre-hole size and condition, material, runout, holder, feed and coolant before setting the process. The stated H7 tool tolerance does not guarantee a finished hole without a suitable setup.
Read working dimensions together
Check overall length, extension length, head length, shank diameter and flute count. Use the manufacturer drawing as a dimension reference and the selected EDP row for actual values.
Frequently asked questions
Should I choose HR 500 S or HR 500 D?
Start with blind versus through-hole condition and coolant delivery. Series 1685 is the S configuration with axial coolant; 1686 is the D configuration with radial coolant.
Can Tech Tool help confirm the reaming setup?
Include the finished diameter and tolerance, material, pre-hole dimensions, hole depth, machine, holder and coolant arrangement with your quote request.
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