The Starrett SB6-A Reciprocating Blade Kit contains a selection of unified shank 3X POWER Bi-Metal reciprocating blades. They provide up to three times the life and increased cutting rates compared to our previous line, setting a new level for performance and value on the market. With an optimised tooth pitch for a reduction in vibration, offering cleaner cuts and less fatigue. They are unbreakable; providing safety and reliability. Contains: 1 x B66 Wood Cutting Blade 152 x 19 x 0.89mm, 6 TPI 1 x B610 Multipurpose Blade 152 x 19 x 0.90mm, 10 TPI 1 x B614 Metal Cutting Blade 152 x 19 x 0.90mm, 14 TPI 1 x B618 Metal Cutting Blade 152 x 19 x 0.90mm, 18 TPI 1 x B624 Metal Cutting Blade 152 x 19 x 0.90mm, 24 TPI