بتة قفل الدرج لسمك 1/2 بوصة – Whiteside 3347 (مطلية بـ AstraHP)

The AstraHP coating is a game changer—this bit tears through pine and plywood without any gumming up, and the glue joint locks so tight I barely need clamps. Cuts both sides of the joint in one pass, which saved me a ton of setup time on a batch of drawers.

This bit works beautifully on 1/2" birch ply; the joint came out snug and perfectly aligned on the first try. Combined with the coating, it’s been gliding through several test pieces without any gumming or slowing down.

The AstraHP coating is the reason I picked this bit over others, and it did not disappoint—the glue joint came out glass-smooth on both passes with zero chatter. I ran it through a dozen 1/2″ poplar drawer sides and the locking fit was snug with no gaps. Just make sure your stock is flat; the joint