Features
- Micrograin carbide tips for improved wear resistance and edge retention
- Control-cut design reduces kickback
- Helps minimize edge cracking in softer materials
- Pilot bearing guides the bit along the edge of the material
- Suitable for chair mats and other softer plastics; can be used on thin wood and plywood
Specifications
| Model Number | 85612M |
| Shank | 1/4 in |
| Radius (R1) | 3/32 in |
| Diameter (D) | 2 9/32 in |
| Flute Length | 0.5 in |
| Overall Length | 2.75 in (2-3/4 in) |
| Product Dimensions | 0.83 in x 3.32 in x 7.50 in |
| Weight | 0.10 lb |
| Pack Quantity | 1 |
| Material | Steel |
| Color/Finish | Blue |
| Warranty | 1 Yr |
| Upc | 000346050967 |
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Router bit intended for cutting and edging chair mats and similar softer plastics in a single pass. Features micrograin carbide tips for wear resistance and edge retention. A control-cut geometry reduces kickback and helps minimize edge cracking. A pilot bearing guides the bit along the material edge. Suitable for use with a 1/4 in shank and with thinner wood and plywood.
Project Ideas
Business
On-Site Chair Mat Customization for Offices
Offer a mobile service to trim and edge chair mats to fit complex workstations, L-desks, and cubicles. Use cardboard templates and the pilot-bearing bit to follow contours and make clean cable cutouts. Price per mat plus per-cutout, and upsell anti-slip backing or branded corner embossing.
Custom Floor Protectors for RVs, Boats, and Vans
Fabricate cut-to-fit polycarbonate or HDPE floor mats for tight, irregular interiors. The control-cut bit minimizes chipping on lightweight plastics and the small radius yields safe, snag-free edges. Sell packages by vehicle model with templating kits shipped to customers or handled locally.
Retail Display Pads and Risers
Produce acrylic product pads, shelf edge guards, and low-profile risers for boutiques and salons. The micrograin carbide tips deliver consistent edges across batches; offer standard sizes with quick-turn custom shapes guided by templates. Market wholesale to local shops and online with MOQ discounts.
Etsy Shop: Cut-to-Shape Desk and Pet Station Mats
Sell aesthetically pleasing mats sized for popular desks, standing desk frames, gaming setups, and pet feeding stations. Provide a templating guide for customers; finish each piece with the pilot-bearing bit for smooth, rounded edges that resist cracking. Offer color options (clear, smoke, opaque) and personalized cutouts.
Workshop and Kits: Routing Plastics 101
Run paid classes teaching safe plastic routing, including feed rates, template use, and edge finishing with the control-cut chair mat bit. Sell starter kits (small acrylic blanks, templates, clamps, bit) and upsell custom templates for signs, mats, and trays. Partner with makerspaces or host in-shop.
Creative
Contour-Fit Desk Chair Mat
Cut a clear polycarbonate or PETG sheet to precisely match your desk and chair area, including notches for cables and desk legs. Use a rough-cut with a jigsaw, then run the carbide-tipped chair mat edge bit along a cardboard or MDF template; the pilot bearing will track the template and the control-cut geometry helps prevent edge cracking in the plastic. The 3/32 in radius softens the perimeter for a premium, safe feel.
LED Edge-Lit Acrylic Sign
Create a laser-engraved or vinyl-applied acrylic sign and finish the perimeter with the bit to achieve smooth, consistent edges that transmit light cleanly. The pilot bearing lets you follow a plywood template for perfect circles or custom shapes, and the micrograin carbide tips maintain a clean cut on multiple signs. Mount the sign in an LED base for a glowing edge effect.
Desk Accessory Trio (Mouse Glide Pad, Pen Tray, Coaster)
Make a matched set from HDPE or UHMW plastic: a low-friction mouse glide pad, a shallow pen tray, and a coaster. Rough-cut rectangles and arcs, then ease all perimeters with the bit. The control-cut design reduces chatter on softer plastics, giving a professional rounded edge that’s comfortable to the touch and easy to wipe clean.
Acrylic-Lipped Floating Shelves
Build thin plywood shelves with a clear acrylic lip to keep items secure. Flush-trim the acrylic to the plywood and then use the chair mat edge bit to give both the acrylic and wood a consistent, soft edge. The pilot bearing keeps the profile even around curves and the small radius adds a polished, furniture-grade finish.
Kid-Safe Craft Boards and Name Plates
Cut colorful HDPE sheets into fun shapes (animals, letters, name plates) and run the bit around the edges for a smooth, safe perimeter. The geometry helps minimize cracking and snags, making the pieces classroom-friendly. Add vinyl decals or paint markers to personalize.