QWORK Twin Blade Adjustable Hole Saw - Cutter with ABS Dust Shield for Recessed Lights Speakers Cornhole Boards Cuts Plywood Sheetrock Plaster Fiberglass Plastic, 1-5/8" to 8" (40-200mm)

Adjustable hole cutter kit

Cutting hole diameter: 1-5/8" to 8" (40mm - 200mm)

Cutting depth: up to 3/4"(19mm) from one side, 1-1/8"(30mm) from two sides

Shank: 3-flat shank

Infinite adjustment and measure bar is marked in inches and metric system

Used for recessed lights and ceiling speakers installation hole cutting, skylights, vent holes cutting

Application materials: Sheetrock, Drywall, Plaster, Ceiling Tile, Soft Acoustic Tile, Plastics, Fiberglass, Acrylic Sheet, Soft Wood and Plywood

User Instruction

It requires a hand drill with a 3/8"(10mm) or larger chuck to cut holes from 1-5/8"(40mm) to 8"(200mm) in diameter and materials up to 3/4"(19mm) thick from one side, 1-1/8"(30mm) thick from two sides

Caution

* When cutting into walls, floors or ceilings, always check to ensure that no electric cables or water pipes etc are in the vicinity of the proposed cut

* Always keep the cutting blades sharp

* Do not use undue force, or too great a drill speed, suggested cutting speeds

Hole Diameter(mm) Drill Speed(RPM)

40 - 49 --------------- 800

50 - 69 --------------- 600

70 - 89 --------------- 400

90 - 119 -------------- 200

120 -180 -------------- 100

* Ensure the cutting blade holders are tight before use

* Make sure to measure the CUTOUT for the product (speaker, recessed light) you are installing. The size of the product you are installing uses a larger cutout, and the needed size is different by manufacturer of the canned light or the speaker

* Screw the wing nut on to the threaded end of the spindle so that that assembly is secure

* As with any new tool, always test on a scrap piece of material to get familiar with the tool