哪些圆锯在重载使用下最耐用？

A 7.25 in corded worm-drive circular saw with a 15 A dual-field motor, magnesium housing and oil-lubricated worm gears for durability. It offers a 53° bevel, Cut-Ready depth markings and a 24-tooth carbide blade, suited to demanding jobsite cutting. Weighing about 11.5 lb, it balances power with reduced user fatigue compared with older worm-drive models.

7-1/4 in BITURBO brushless 18V circular saw delivering corded-level performance with a CORE18V-compatible platform, 2.5 in max cut at 90°, 0-50° bevel, onboard six-speed settings, and track compatibility. It includes a 360° pivoting dust port, electronic brake, and One-Touch depth adjustment for fast, precise cuts, suitable for framing and jobsite use.

The DEWALT DCS391B is a 20V MAX cordless 6-1/2 in circular saw with a 5150 RPM motor, magnesium shoe, and a 6-1/2 in carbide-tipped blade. It offers a 0-50 degree bevel capacity and a measured max cutting depth of 2-1/8 in at 90 degrees, suited for light-to-medium duty woodworking and jobsite tasks.

The Makita 5007MG is a 15 A corded magnesium-bodied 7-1/4 in circular saw delivering 5,800 RPM, a large cutting capacity (2.5 in at 90°), and a 0-56° bevel range with positive stops. It includes a carbide 24T blade, built-in dust blower, LED cut-line lights, and a hard case, balancing durability and jobsite portability.

A corded hypoid circular saw with a 15 A motor delivering 4,500 rpm, magnesium construction for reduced weight, oil-bath hypoid gears for durability, and bevel stops up to 51.5 degrees. It offers a 7-1/4 in blade, 2-3/8 in cutting depth at 90°, and pro-grade features aimed at framing and heavy-duty cutting tasks.

Compact 6.5 in M18 FUEL circular saw with a brushless motor delivering 6000 RPM, 2.25 in max cut depth at 90°, and up to 50° bevel - designed for fast, precise cuts and on-tool convenience features like positive bevel/depth detents and LED light. It suits pros who need a lighter, well-balanced cordless saw that still handles common framing and decking cuts.

The SKILSAW SAWSQUATCH is a 15 Amp corded worm-drive circular saw with a 10.25 in blade, magnesium construction, brass worm gears and a high-torque motor designed to cut 4x lumber in a single pass. It offers heavy-duty durability, large cutting capacity (3.688 in at 90°) and a 51° bevel for versatile on-site framing and decking work. It includes a 40-tooth blade and onboard wrench.