YDTech® manufacturers of ID type inverse drills, PCB micro bits, carbide drill pins & PCB routers, tungsten UC micro drill bits! suppliers of ID series drilling bits, circuit board drill pins, precision CNC twist drills, PCB board router bits in china.

ID (Inverse Drill) bits, also known as back drilling or controlled-depth drilling bits, are specialized PCB (Printed Circuit Board) drill bits used to create blind vias or through-holes with controlled depths. These holes are drilled from one side of the PCB but do not penetrate all the way through to the other side.

PCB micro drill bits are classified according to outer dimensions, including ID type drill bits and conventional drill bits. ID type drill bits: the drill diameter is larger than the shank diameter. conventional drill bit: The drill diameter is smaller than the shank diameter.

The purpose of using ID drills is to remove the copper plating or conductive layers from inner layers of a multilayer PCB, without drilling all the way through the board. This is particularly important in high-speed digital circuits to reduce signal reflections and improve signal integrity.

ID drills have a special design that allows them to drill to a specific depth without penetrating through the entire thickness of the PCB. They are equipped with a depth stop mechanism or other features that control the drilling depth accurately.

ID drills are essential tools in PCB manufacturing for creating controlled-depth holes, particularly in multilayer boards where signal integrity is critical. They help ensure reliable and high-performance electronic circuits by reducing signal distortions and reflections.

sizes of standard cemented carbide micro ID (inverse drill) pins for PCB (printed circuit boards)

PCB drill bits,PCB router bits, PCB milling cutters, circuit board drills, slot drills, tungsten carbide mini drills,

3.15,	13,	3.20,	13,	3.25,	13,	3.30,	13
3.35,	13,	3.40,	13,	3.45,	13,	3.50,	13
3.55,	13,	3.60,	13,	3.65,	13,	3.70,	13
3.75,	13,	3.80,	13,	3.85,	13,	3.90,	13
3.95,	13,	4.00,	13,	4.90,	13,	4.95,	13
5.00,	13,	5.05,	13,	5.10,	13,	5.15,	13
5.20,	13,	5.25,	13,	5.30,	13,	5.35,	13
5.40,	13,	5.45,	13,	5.50,	13,	5.55,	13
5.60,	13,	5.65,	13,	5.70,	13,	5.75,	13
5.80,	13,	5.85,	13,	5.90,	13,	5.95,	13
6.00,	13,	6.05,	13,	6.10,	13,	6.15,	13
6.20,	13,	6.25,	13,	6.30,	13,	6.35,	13
6.40,	13,	6.45,	13,	6.50,	13
custom PCB drill bits,PCB router bits, microtwist bits, CNC drill pins,PCB milling cutters, circuit board drill bits,circuit board slot drills, cemented carbide mini drills, PCB tungsten pins

PCB twist drills, carbide pin drills, PCB drill bits,PCB router bits, CNC drill pins,PCB milling cutters, circuit board drill bits,circuit board slot drills, cemented carbide mini drills, PCB tungsten pins.

PCB twist drills, carbide pin drills, PCB drill bits,PCB router bits, circuit board drill bits,circuit board slot drills, cemented carbide mini drills, PCB tungsten pins.

type	Series	Diameter	Features
ID	RS	Φ 3.200 ~ Φ 6.500 mm	General Purpose
DE	EA	Φ 0.075 ~ Φ 0.350 mm	Excellent Hole Accuracy
DE	EH	Φ 0.075 ~ Φ 0.350 mm	Excellent Hole Wall Quality
DE	EHA	Φ 0.075 ~ Φ 0.350 mm	Balance of hole accuracy & hole wall quality
DE	GA	Φ 0.075 ~ Φ 0.25 mm Flex board
Back Drill	Back Drill	Φ 0.500 ~ Φ 3.175 mm	Customized

custom PCB drill bits,PCB router bits,CNC drill pins,PCB milling cutters, circuit board drill bits,circuit board slot drills, cemented carbide mini drills, PCB tungsten pins

0.564	2.756	0.748	0.106	FDP 2023
0.564	2.756	0.787	0.126	FDP 2023
0.564	2.756	0.828	0.145	FDP 2023
0.564	2.756	0.866	0.165	FDP 2023
0.564	2.756	0.906	0.186	FDP 2023
0.564	2.756	0.945	0.205	FDP 2023
0.564	2.756	0.984	0.224	FDP 2023
0.564	2.756	1.024	0.244	FDP 2023
0.564	2.756	1.063	0.264	FDP 2023
0.564	2.756	1.102	0.288	FDP 2023
0.564	2.756	1.142	0.303	FDP 2023
0.564	2.756	1.148	0.308	FDP 2023
0.564	2.756	1.181	0.323	FDP 2023
0.564	2.756	1.417	0.487	FDP 2023
custom PCB drill bits,PCB router bits, microtwist bits, CNC drill pins,PCB milling cutters, circuit board drill bits,circuit board slot drills, cemented carbide mini drills, PCB tungsten pins