CNC router Power tools diamond twist drill bits for all sorts of hard stone

FOB Reference Price:Get Latest Price
US $3-27 / Piece | 1 Piece/Pieces (Min. Order)
Supply Ability:
6523000 Piece/Pieces per Month
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Quick Details
Place of Origin:
Fujian, China (Mainland)
Brand Name:
Model Number:
Twist Drill Bit, Power Tool Parts,Twist drill bit
Diamond, Steel/Carbide
Metal Drilling
Solid drills
Brand name:
Drill bit:
fully ground,Cobalt
Point angle:
118 or 135 point angle
Black finish,TiN Coated, etc
Raw Material:
Packaging & Delivery
Packaging Details
Paper bag and poly bag for inner packaging. Carton bag or wooden box with straps for outer packaging.
Delivery Time
10-15days, confirm with sales before place an order
Product Description


       Twist drill bits range in diameter from 0.002 to 3.5 in (0.051 to 89 mm) and can be as long as 25.5 in (650 mm).

     The geometry and sharpening of the cutting edges is crucial to the performance of the bit. Small bits that become blunt are often discarded because sharpening them correctly is difficult and they are inexpensive. For larger bits, special grinding jigs are available. A special tool grinder is available for sharpening or reshaping cutting surfaces on twist drill bits in order to optimize the bit for a particular material.

      Manufacturers can produce special versions of the twist drill bit, varying the geometry and the materials used, to suit particular machinery and particular materials to be cut. Twist drill bits are available in the widest choice of tooling materials. However, even for industrial users, most holes are drilled with standard high speed steel bits.

       The most common twist drill bit (sold in general hardware stores) has a point angle of 118 degrees, acceptable for use in wood, metal, plastic, and most other materials, although it does not perform as well as using the optimum angle for each material. In most materials it does not tend to wander or dig in.


Packaging & Shipping

  Paper bag and poly bag for inner packaging. Carton bag or wooden box with straps for outer packaging.


    We ship using express such as DHL, UPS, FEDEX etc. or according to customer's requirement

Our Shipping target is to dispatch the day following receipt of cleared payment.
 Please allow 7 days to receive your order.


Company Information






Our Services



1. TT, western union, Money Gram and PayPal

2. 100% payment before delivery

3. To the Bulk order, the L/C is also can consider


Delivery time:  Within a week after payment

Transport ways choose:

1. Urgent order with less weight or samples SUNNY recommend express service.
2. Normal (regular) orders which weight over 45kgs SUNNY recommend Air Cargo.
3. Big diameter saw blades or heavy weight SUNNY recommend Sea Cargo.

For expert advice, regarding questions about our company or concerns SUNNY products

(diamond tools) please contact us through e-mail or link on: