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 up cut for plastic

Posted by Robert on 21st Apr 2021

Great product , left clean finish
5
Adams Bits are the best

Posted by Mick on 22nd Mar 2021

It works extremely well on hardwood once I got the settings right.
5
1 flute upcut carbide endmill

Posted by Paul Williams on 5th Mar 2021

Great product, quick delivery
5
1 flute uncut mill for plastic

Posted by Wayne Weatherstone on 18th Feb 2021

So pleased I discovered Adams Bits. All these bits I have purchased from Adams Bits are of excellent quality. After a lot of use in perspex and HDPE they still remain very sharp, ther clear well, even with masking tape and super glue on them when I have cut too deep. Being a novice I also appreciate the information in Adams catalog . The service and postage are also very prompt and reliable.
5
excellent bit for plastics especially perspex

Posted by Wayne Marsh on 1st Feb 2021

I brought this cutter to do fine detail and wording for making fondant stamps for my daughters biscuit business
5
Bit

Posted by Nabil on 3rd Jan 2021

Great product just done the job perfectly love it
5
Carbide End Mill

Posted by Mario Carpini on 28th Dec 2020

Worked well on Acrylic sheet. Clean cut, no overheating.
5
Great product great service

Posted by Craige on 24th Dec 2020

Fantastic end mill for acrylic engraving
5
1 flute upcut 6mm

Posted by Phil Stonebanks on 11th Dec 2020

I ran these on 6mm HDPE, very clean fast cut, decent chip, nice cool stock, no burrs, very happy with them.