HSS & HCS Twist Drill Bits With Adapter/Rod for Wood Iron Sheet Template 16~25mm
● Model:Woodworking Template Bits
● Material: HCS / HSS
● Standard: GB
● Material: HCS / HSS
● Standard: GB
●
Type: HCS Drill Bit+Adapter / HSS Drill Bit+Adapter / Adapter / Extension Rod
● Size: 16mm 18mm 20mm 22mm 25mm
● Overall length: 145mm/150mm
Carbon steel(HCS): suitable for various wood-plastic materials such as pine/ash/sandalwood MDF/compressed board.
High-speed steel(HSS): suitable for various wood-plastic materials such as iron sheet / thin iron plate / pine ash wood / sandalwood MDF / compression board.
Features:
135° standard double flank angle, fully ground drill, sharp and durable cutting edge, stable feeding.
Spiral chip flute, large spiral flute design, good chip removal performance, fast drilling speed, and significantly improve work efficiency.
Standard shank, one drill for two purposes, detachable connecting cylinder, the drill bit can be used for bench drills, electric drills, etc. It is more convenient to use alone.
The pin holes are convenient and firm. All sleeves are designed with pin holes, which can be better fixed on the machine with rubber rings/pins, and are not easy to fall off.
● Size: 16mm 18mm 20mm 22mm 25mm
● Overall length: 145mm/150mm
Carbon steel(HCS): suitable for various wood-plastic materials such as pine/ash/sandalwood MDF/compressed board.
High-speed steel(HSS): suitable for various wood-plastic materials such as iron sheet / thin iron plate / pine ash wood / sandalwood MDF / compression board.
Features:
135° standard double flank angle, fully ground drill, sharp and durable cutting edge, stable feeding.
Spiral chip flute, large spiral flute design, good chip removal performance, fast drilling speed, and significantly improve work efficiency.
Standard shank, one drill for two purposes, detachable connecting cylinder, the drill bit can be used for bench drills, electric drills, etc. It is more convenient to use alone.
The pin holes are convenient and firm. All sleeves are designed with pin holes, which can be better fixed on the machine with rubber rings/pins, and are not easy to fall off.
How to keep your drill from burning
Burning reason:
1. Use a pure drill.
2. The feed amount is too large.
3. Drill cuttings block the drill bit spiral groove.
4. When the drill bit just drills through, the feed resistance decreases rapidly or the feed rate increases suddenly.
5. The workpiece is loose.
6. Drilling and casting work encounter shrinkage holes.
solution:
1. Reduce the feed and increase the cutting speed reasonably.
2. In the case of deep holes, the chips should be removed frequently so that the chips can be discharged.
3. When the drilling is about to penetrate, reduce the feed.
4. Fix the workpiece.
5. Reduce the cutting speed and select the sharpening angle of the drill bit according to the hardness of the workpiece.
Burning reason:
1. Use a pure drill.
2. The feed amount is too large.
3. Drill cuttings block the drill bit spiral groove.
4. When the drill bit just drills through, the feed resistance decreases rapidly or the feed rate increases suddenly.
5. The workpiece is loose.
6. Drilling and casting work encounter shrinkage holes.
solution:
1. Reduce the feed and increase the cutting speed reasonably.
2. In the case of deep holes, the chips should be removed frequently so that the chips can be discharged.
3. When the drilling is about to penetrate, reduce the feed.
4. Fix the workpiece.
5. Reduce the cutting speed and select the sharpening angle of the drill bit according to the hardness of the workpiece.
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（If you need other size, you can chat with us privately.）☎️ ☎️ ☎️
About packaging:
Shipment according to your choice.
Notes:
✔️Large quantity accepts various sizes and can be customized.
📞If you can't find the relevant series of goods, you can ask us. We will be happy to help.
✔️If you need to buy more than one item, you can add a shopping cart first, and there will be a bigger discount.
📞Purchasing different products may result in abnormal shipping costs. If the shipping cost is too high, please contact us.
✍The pictures are for reference only, please choose your requirements (size, quantity).
On 24-May-2024 at 10:14:49 BST, seller added the following information: