Procedure trigger when starting to break block

How do I trigger a procedure when a player starts to break a block?

Goal

I am trying to make a custom tools that insta-break any block when it has power.

Actual solution

I made a procedure to break the block and add its item to the player's inventory if the tool has power.

Problem

I need an event Starting to break block to trigger my procedure, but I can't find it.

My question

Is there any way to make a Starting to break block trigger?
If not, is there any other way to reach my goal?

Code

Objects

Redstone Pickaxe

It's the tool that can insta-break stuff. I configured it to be as good as bare hand by default.

Block breaking procedure

Triggered when starting to break a block. If using a redstone pickaxe with power, insta-breaks the block.

Code

Block breaking procedure

package org.sustakenusername.redpower.procedures;

/* imports omitted */

@Mod.EventBusSubscriber
public class RedstoneToolBreakProcedure {
	@SubscribeEvent
	public static void onBlockBreak(BlockEvent.BreakEvent event) {
		execute(event, event.getLevel(), event.getPos().getX(), event.getPos().getY(), event.getPos().getZ(), event.getState(), event.getPlayer());
	}

	public static void execute(LevelAccessor world, double x, double y, double z, BlockState blockstate, Entity entity) {
		execute(null, world, x, y, z, blockstate, entity);
	}

	private static void execute(@Nullable Event event, LevelAccessor world, double x, double y, double z, BlockState blockstate, Entity entity) {
		if (entity == null)
			return;
		if ((entity instanceof LivingEntity _livEnt ? _livEnt.getMainHandItem() : ItemStack.EMPTY).getItem().isCorrectToolForDrops(blockstate)) {
			if ((entity instanceof LivingEntity _livEnt ? _livEnt.getMainHandItem() : ItemStack.EMPTY).getOrCreateTag()
					.getDouble("redpower.Power") > 0) {
				if (entity instanceof Player _player) {
					ItemStack _setstack = (new ItemStack(blockstate.getBlock()));
					_setstack.setCount(1);
					ItemHandlerHelper.giveItemToPlayer(_player, _setstack);
				}
				world.setBlock(new BlockPos(x, y, z), Blocks.AIR.defaultBlockState(), 3);
				(entity instanceof LivingEntity _livEnt ? _livEnt.getMainHandItem() : ItemStack.EMPTY).getOrCreateTag().putDouble("redpower.Power",
						((entity instanceof LivingEntity _livEnt ? _livEnt.getMainHandItem() : ItemStack.EMPTY).getOrCreateTag()
								.getDouble("redpower.Power") - 1));
			}
		}
	}
}