3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill 3/6/8 hole triangular punching 4-12/4-20/4-32mm handle Assembly straight saw 6pc drill set ladder worker groove drill