Bi-metal blade is wider (1') and thicker (
UL 758 Standard for Appliance Wiring Material
Alternating tooth bevel with a flat top raker (ATB-R) and interfused anti-friction coating provides exceptionally smooth cuts
Centering tip improves accuracy
The cartridges include integral high efficiency (99
Spyder 600034CF 3" Tungsten Carbide Tipped (TCT) Non-Arbored Hole Saw Rapid Core Eject® Size:3" Bi-metal blade is wider (1')Spyders Tungsten Carbide Tipped (TCT) hole saws cut more materials up to 5x faster and make up to 10x more cuts lasting longer than conventional bi metal hole saws. TCT hole saws drill through wood, MDF, fiber cement board, porous concrete block, plastic PVC and more. Use with Spyders Rapid Core Eject arbor system to remove cores without prying (drill hole, press button, pull back the hole saw, and eject the core), cut at an angle, and enlarge