There is only really one bit that you would want to attempt on plastics and that is the 1 flute up cut. Also know and single or “O” flute, the one toothed up cutter allows for maximum chip ejection compared to any other bit and generates the least amount of heat. The combination of the two means that when cutting plastics, you avoid the nasty occurrence of “chip rewelding” where plastic upon cutting heats up to the point it solidifies behind the cutter, rather than ejecting nicely. As these bits are purposely aggressive, using these bits on laminated woods like ply or softwoods would tear up your material and leave a heavily burred finished.

Suitable for

Plastics (ABS, acrylic, HPDE etc)
Wood (MDF, hardwood)

Adam’s Tips

To reduce rewelding, ensure your bit doesn’t heat up by driving your feed rate high and router RPM low.

Feeds and Speeds - 1 Flute for Plastics mm per minute
		Plastics/Wood
Item Code	Description	Soft	Hard
0.8-3.175-SP-1F-3	0.8mm x 3.175mm x 3mm 1F	650	350
1-3.175-SP-1F-4	1mm x 3.175mm x 4mm 1F	800	400
1.5-1/8-SP-1F-6	1.5mm x 3.175mm x 6mm 1F	1,250	650
2-1/8-SP-1F-8	2mm x 3.175mm x 8mm 1F	1,700	850
2-1/8-SP-1F-12	2mm x 3.175mm x 12mm 1F	1,450	750
2.5-1/8-SP-1F-12	2.5mm x 3.175mm x 12mm 1F	2,050	1,050
1/8-1/8-SP-1F-12	3.175mm x 3.175mm x 12mm 1F	3,050	1,550
1/8-1/8-SP-1F-17	3.175mm x 3.175mm x 17mm 1F	2,450	1,250
1/8-1/8-SP-1F-22	3.175mm x 3.175mm x 22mm 1F	1,950	1,000
4-4-SP-1F-17	4mm x 4mm x 17mm 1F	3,800	1,900
4-4-SP-1F-22	4mm x 4mm x 22mm 1F	3,000	1,500
6-6-SP-1F-17	6mm x 6mm x 17mm 1F	9,350	4,700
6-6-SP-1F-22	6mm x 6mm x 22mm 1F	7,500	3,750
6-6-SP-1F-32	6mm x 6mm x 32mm 1F	4,800	2,400
6-6-SP-1F-52	6mm x 6mm x 52mm 1F	1,950	1,000
3.175-6.35-SP-1F-17	3.175mm x 6.35mm x 17mm 1F	2,450	1,250
4-6.35-SP-1F-22	4mm x 6.35mm x 22mm 1F	3,000	1,500
6.35-6.35-SP-1F-22	6.35mm x 6.35mm x 22mm 1F	8,650	4,350
8-8-SP-1F-22	8mm x 8mm x 22mm 1F	16,550	8,300
10-10-SP-1F-22	10mm x 10mm x 22mm 1F	34,300	17,150
12-12-SP-1F-32	12mm x 12mm x 32mm 1F	43,650	21,850

Revolutions per minute 16,000RPM
100% width per cut slotting
Depth per cut Diameter x 1

64 Reviews Hide Reviews Show Reviews

5
1 flute cutters

Posted by Shaun on 24th Sep 2021

Using a 6mm and a 12mm in HDPE Results are amazing to say the least. Follow Adam’s advice slow the speed and up the feed and they hog like a dream. Highly recommend!!
5
Best bit for the job

Posted by Phil on 20th Sep 2021

Can’t fault these bits. Quality shows
5
CNC Bit

Posted by B on 30th Aug 2021

Using this bit on acrylic sheet is great, it gives a really good finish even down to detail shapes and parts, I'm using a cutting speed of 300mm/min for the 2mm bit, highly recommend this bit.
5
You can't go wrong!

Posted by Mick on 22nd Jul 2021

These end mills are awesome! You can't go past the quality, and the service!
4
Good cut

Posted by Michael Taylor on 21st Jun 2021

Good cutting tool but edge cut could be better
5
Adam's Bits

Posted by Chris on 5th Jun 2021

Excellent customer service and very good quality bits. Very pleased with the performance.
5
up cut endmill

Posted by rick fearnall on 3rd Jun 2021

great value , beautiful product , very quick services , 5 stars for sure . rick 3dwise
5
Good Product

Posted by Adam Wilkinson on 17th May 2021

Very sharp, cuts nicely. Postage was cheap.
5
Like butter!

Posted by Tony Heap on 5th May 2021

Such a nice clean cut. Very happy.