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50mm bi-metal hole saws
while the metal bond gradually wears away to expose new diamond
1 X Die Holder
These heavy duty quick change holders securely grip any standard 1/4 hex shank accessory
16-50mm 9 Piece Sparky's Hole Saw Kit
1/16-3/8" 21 Piece HSS Cobalt Drill Set ABS Case 50mm bi-metal hole saws1 16 3 8" 21 Piece HSS Cobalt Drill Set ABS Case Bordo Fractional Cobalt Tough HSS Co5 Twist Drills. ANSI B94 11 135 Split Point (crankshaft point). Split point is self centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust. The 135 point should be used to cut harder steel materials especially in deep hole applications. In these situations it will produce thicker chips
