Lense End Mill Single Edge Milling Cutter 5A-Down Cut For PC Lenses Acrylic Panels

Cutting PC lenses, PMMA panels or electrical nameplates on a router and fighting a lifted edge? The CUT008 is a single-flute lense end mill with a 5A down-cut geometry, so the chips leave through the bottom of the cut and the top face stays flat and burr-free, even on thin acrylic and phone glass. Body material is alloy, flute number 1, shank diameters 3.175 / 4 / 6 mm, total lengths 38 / 45 / 50 / 60 mm. Individually packed; price quoted per order.

A shop cutting optical sheet runs into the same three things: the top face lifts and chips on the last pass, the lens edge needs a second operation before it is clean, and every new thickness seems to need its own cutter. CUT008 is the answer to all three.

It is a single-edge milling cutter from the 5A down-cut family, machined in alloy with a flute number of 1. The part that matters is bottom chip removal: the edge drives chips downward through the cut rather than up the side. The reaction force holds the sheet on the table, so the panel cannot climb the cutter, and the upper surface comes off flat, smooth and burr-free. That same geometry holds edge chipping and deformation down on thin, brittle stock.

The workpiece list is the practical half. The cutter is specified for PC lenses, PMMA panels, MR200 and MR58 optical lenses, mobile phone glass, acrylic panels and electrical nameplates — sheet materials where a lifted rim or a chipped edge shows immediately. It runs on CNC routers, engraving machines and milling equipment.

Shank diameters are 3.175 mm, 4 mm and 6 mm, covering an 1/8 in collet and metric holders; total lengths are 38, 45, 50 and 60 mm. Each cutter is individually packed; price is quoted per order.

Nine points define what CUT008 is, beyond the word cutter.

• Single flute — flute number 1, so the cut has the largest chip room and the fewest edges to load up on plastic dust.
• 5A down-cut, bottom chip removal — the edge drives chips downward through the bottom of the pass, pressing the sheet onto the table; the chips leave below the workpiece, away from the finished face, which stays flat, smooth and burr-free.
• Alloy body — machined in alloy, so sharpness and stability sit in the body, not in a surface layer.
• Three shank diameters — 3.175 mm, 4 mm and 6 mm, covering an 1/8 in collet and metric holders from one part number.
• Four overall lengths — 38 mm, 45 mm, 50 mm and 60 mm, so reach matches the job, not the shelf.
• Optical-sheet workpiece list — PC lenses, PMMA panels, MR200 and MR58 optical lenses, mobile phone glass, acrylic panels and electrical nameplates.
• Chipping and deformation control — the down-cut load path is why the tool is specified for thin, brittle stock, where a lifted edge becomes scrap.
• Fits light CNC equipment — listed for CNC routers, engraving machines and milling equipment — no dedicated head needed.
• Individually packed — one cutter per pack, so a replacement is issued without opening a set.

Today the choice is usually an outside lens shop or a hand trim. CUT008 is the third option.

• The top face stops lifting. A down-cut edge drives chips down and holds the sheet on the table, so a thin PC or PMMA panel does not climb the cutter — no re-clamp, no scrapped panel.
• The finish comes off the tool. Because the chips leave below the cut, the visible face arrives flat and burr-free, which is the point on an optical lens or a nameplate that will be read.
• One part number covers three collets. 3.175 mm, 4 mm and 6 mm shanks mean the same CUT008 fits an 1/8 in router spindle and a metric holder.
• Reach is chosen, not guessed. 38 / 45 / 50 / 60 mm overall lengths cover shallow trim and deeper profiling with the same edge geometry.
• Brittle stock stops becoming scrap. Mobile phone glass, MR200 and MR58 lenses and electrical nameplates are all named workpieces, so the tool is specified for the materials that chip first.
• Reordering is one line. Individually packed under a single SKU, so the spares shelf and the purchase order stay simple.
• Single edge, repeatable geometry. One cutting edge means one edge to check before a job, and the same edge to re-order against.

Yes. The 5A down-cut geometry drives the chips downward through the cut, so the cutting force presses the sheet onto the table instead of lifting it, and the upper face comes off flat, smooth and burr-free.

Match the shank to your collet: 3.175 mm for an 1/8 in holder, 4 mm or 6 mm for metric holders. All three are part of the CUT008 range, so the same cutter geometry is available for every common spindle size.

Four: 38 mm, 45 mm, 50 mm and 60 mm. Pick the shortest one that clears the fixture and gives the depth you need — a short tool is stiffer, a long tool reaches deeper pockets.

It reverses the chip direction. The chips are driven down and out through the bottom of the pass rather than thrown upwards along the wall, which is what keeps the finished top surface free of burrs and stops thin sheet from being pulled up.

Yes. MR200 and MR58 optical lenses are both on the suitable workpiece list, together with PC lenses and PMMA panels. Those are the optical materials the tool is specified for.

Yes, both are listed workpieces. Mobile phone glass and electrical nameplates are named in the specification alongside acrylic panels, so a shop cutting lenses and a shop cutting nameplates can use the same cutter.

CNC routers, engraving machines and milling equipment. The tool is a shank-mounted cutter, so it fits any of those machines that accepts a 3.175 / 4 / 6 mm collet.

Individually packed, and priced per order. Each cutter ships one per pack; order quantity, payment terms and delivery are fixed on the quotation, so send the shank size, length and quantity you need.