Metric Tap (M6x1.0)

Because M6 is used everywhere, M6 threads get damaged everywhere — stripped by over-tightening, corroded, packed with paint, or burred by a cross-threaded start. A single tap in this size will pay for itself in a week in a busy shop.

The two most useful things a tap does are worth separating. The first is chasing: running the tap through an existing thread to clean it out. That is not cutting a new thread, it is clearing rust, paint, thread-lock and debris so the fastener runs in freely under its own weight until it seats. It matters because a bolt forced into a dirty thread is exactly how threads strip, and because a torque figure means nothing if most of the torque is being consumed by friction in a fouled thread rather than clamping the joint.

The second is repair — recutting a thread that has begun to strip, or tapping a hole out to the next size up after drilling when the original is beyond saving.

The material is 9CrSi alloy steel, a chromium-silicon tool steel chosen because it takes a high hardness at the cutting edges while keeping enough toughness to resist snapping. On a tap that balance is everything, since the failure mode is breaking rather than going blunt.

The buyers are vehicle, motorcycle and three-wheeler mechanics, engineering and machine shops, maintenance and plant fitters, agricultural workshops, appliance repairers, and hardware dealers.

Three habits. Cutting oil generously and continuously — dry cutting tears the thread and multiplies the force needed, which is the main cause of broken taps. Back off half a turn for every turn forward to break the chip, since a tap jammed on its own swarf is a tap about to snap. And check squareness after two turns, from two directions ninety degrees apart, because a thread started crooked cannot be corrected once it is committed. Message us on WhatsApp for a price.