Frequently Asked Questions about the X20 NISHIGAKI INDUSTRIAL N-896 Drill Bit Grinder:

1/ What types of drill bits does the X20 N-896 support?

- High-Speed Steel (HSS)

- Cobalt-alloy HSS

- Titanium-coated HSS

It does not support superhard carbide bits or masonry/concrete bits.

2/ What drill bit diameters can it grind?

The machine handles twist drill bits with diameters from 10mm up to 20mm.

3/ What are the preset grinding angles?

- Point angle (included angle): 118°

- Relief angle: 10°

These settings match standard steel-drilling profiles and can be fine-tuned via the point-setting gauge.

4/ How do I set the grinding angle?

- Mount the point-setting gauge into the chuck.

- Insert the drill bit until its tip lightly contacts the gauge.

- Tighten the chuck, remove the gauge, and proceed with grinding following the user manual steps.

5/ What is the maximum continuous operating time?

You can run the grinder continuously for up to 15 minutes. After each cycle, allow the motor to cool for 5 - 10 minutes.

6/ What is the grinding speed?

The grinding wheel spins at a fixed 18,500 RPM, delivering a smooth, sharp edge on the drill bit.

7/ Can I adjust the speed or power?

No. The X20 N-896 operates at a single power rating of 148W and a fixed wheel speed of 18,500 RPM. There is no variable frequency drive.

8/ What are the electrical specifications?

- Rated voltage: AC 100V

- Power consumption: 148W

- Frequency: 50/60 Hz

9/ What are the dimensions and weight of the machine?

- Dimensions (W × D × H): 263 x 185 x 203mm

- Net weight: 5.2 kg (including chuck and gauge)

10/ What accessories come included with the X20 N-896?

- Drill-bit chuck (installed)

- Mounted point-setting gauge

- User manual

11/ What optional accessories are available?

- Replacement point-setting gauge (model 1626)

- Chip collector kit (model N-896-4)

12/ How should I maintain and clean the grinder?

- After each 15-minute use, power off and allow a 5 - 10 minute cool-down.

- Brush away swarf and dust with a soft-bristle brush - do not use water or solvents.

- Inspect the grinding wheel regularly; replace if deep grooves or balance issues appear.

13/ When should I replace the grinding wheel?

Replace the wheel when you notice any of the following:

- Deep abrasive grooves that affect bit geometry

- Cracks, chips, or signs of imbalance

- Consistent vibration during operation

14/ What safety precautions should I take?

- Always wear eye protection and hearing protection.

- Ensure the machine is securely mounted on a stable surface.

- Do not exceed the recommended continuous run time.

- Keep hands and loose clothing away from the rotating wheel.

15/ What warranty and technical support options are available?

The warranty period is 12 months from the date QTE TECHNOLOGIES dispatches the goods: https://qtetech.com/en/warranty-policy

16/ How do I order the machine and what is the delivery time?

Kindly click on Request a quote to unlock the Best Price and Delivery Date. Our expert consulting team – QTE Technologies (qtetech.com/en) is always ready to assist you.

17/ What are common issues and how can I troubleshoot them?

- Machine won’t start: check power supply, fuse, and plug connection.

- Excessive wheel vibration: stop the machine, inspect the wheel for cracks or imbalance, and replace if necessary.

- Poor grinding quality: verify correct point and relief angles, ensure the wheel is not worn out, and confirm the bit is securely clamped.