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Bi-Metal Plus Hole Saws
551X

PUSH & LOCK
PUSH BUTTON FOR 45mm|1-3/4”
& LOCK FAST & EASY F AST
FAST
CHANGE
ADAPTOR
CMT XTREME FAST AND PUSH&LOCK SYSTEMS: NEXT GENERATION HOLE SAW
REPLACEABLE
PILOT DRILL

SPECIAL RELEASE SLOTS TO PUSH OUT
HEXAGONAL QUICK THIN WASTE AND WEIGHT REDUCTION
SHANK CONNECT

TooTh deSign ALTERNATE & SIDE SET TEETH bi-meTal 8% cobalT
Special tooth geometry with variable pitch (4~6 TPI) Teeth made with Bi-metal 8% Cobalt provide BIM 2X
provides a smoother cut and better chip clearance VARIABLE PITCH (4~6 TPI) extreme results. Superior performance and 2X
preventing clogging and heat build-up. longer cutting life then the standard hole saw. 8% Co LONGER LIFE
Teeth are alternate & side set to minimize binding
and friction therefore requiring less feed pressure.

Materials

COOLING LUBRICANT:
When drilling metals, lubrication serves several purposes:
- it cools the saw and workpiece
- it reduces heat and abrasion which shortens cutting life
- it helps remove swarf from the cutting su rface
- it extends hole saw life by 500%.
SPEED KILLS!
Operating at higher speeds than those indicated will shorten hole saw life
STAINLESS STEEL CAST IRON STEEL and produce pour quality holes.
FEED PRESSURE:
Always consider materials in use and project type. Apply sufficient feed
pressure to aid proper chip removal. Reduce the pressure when hole saw
becomes hot or if teeth start to clog. Insufficient feed pressure will lead to
premature tooth dulling. Too much pressure will damage teeth.
PRE-BORE:
For best results, always pre-bore with the pilot drill only.
NEVER USE
HAMMER MECHANISM
NEVER USE
ALUMINIUM COPPER/BRASS PLASTICS WITH THESE HOLESAWS! HAMMER MECHANISM

Applications: examples on steel, sandwich material.

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