Solid carbide drill bits

A solid carbide drill bit is an axial solid metal cutting tool for making holes. It is made of solid carbide and is used for manual and machine drilling of solid natural wood and wood boards (chipboard, laminated chipboard, MDF and others). Solid carbide drill bits for wood are widely used in high-performance CNC drilling centers used for serial production of furniture and joinery. The Stancomplect online store offers for sale drill bits made of hard alloys of the HD brand from Taiwan.

Construction of solid carbide drill bits

In the design of drill bits made from a monolithic steel blank, the following can be distinguished:

1. The working part, consisting of:
   • cutting head with a precisely balanced center;
   • guide grooves for chip removal.
2. 10 mm shank , used to secure the drill bit in the chuck.

Depending on the sharpening angle of the cutting head, a solid drill bit can be:

• Blind, with a sharpening angle of about 180°, designed for drilling recesses with a flat bottom for fasteners and furniture fittings ( series 301 );
• Through - this drill bit is used to make through holes. It is sharpened at an angle of 90-140°, and belongs to the 501 series . For fast drilling of through holes in laminated boards, the sharpening angle should not be more than 95°, to prevent chipping.

Types of markings for solid carbide drill bits

The marking of drill bits made from solid carbide steel monolith indicates:

1. Trademark.
2. Series.
3. Cutting head diameter.
4. Length of the working part.
5. Length of drill bit with shank.
6. Hardness of drilling material on the Rockwell scale.

For example, a blind drill bit of the HD brand, with a diameter of 5 mm, a working part length of 70 mm and right rotation is designated as HD 5x70R.

Features and advantages of solid carbide drill bits

The design of solid carbide drill bits has the following features:

• the presence of a short reverse cone that prevents the drill bit from jamming;
• predominance of axial loads;
• absence of cutting edges on the side faces;
• cross-cut sharpening for precise centering;

The advantages of this type of drill bit include:

1. Ability to work with high feed rates without compromising hole quality.
2. Minimal runout due to high rigidity, which increases drilling accuracy.
3. Resistance to heat, allowing drilling to be done continuously for a long time.
4. Possibility of resharpening if a special machine is available.

How to choose a solid carbide drill bit

To select the appropriate solid carbide drill bit, it is necessary to determine:

• hardness sufficient for drilling holes in the workpiece material;
• type and dimensions of the shank – they must correspond to the parameters of the clamping mechanism;
• suitable working diameter of the drill bit and sharpening angle according to the diameter of the holes and their type (through or blind);
• the required length of the working part, based on the depth of the holes.

Based on the parameters received, you can easily select the required drill bit.

Advantages of buying solid carbide wood drill bits at stancomplect.com

When you buy a solid carbide drill bit for wood in the Stancomplect online store, you are purchasing a high-quality cutting tool from Woodworking Tools HD (Taiwan), whose products are in high demand all over the world. We are its official dealer and offer affordable prices and a brand guarantee for all HD products.