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HOME > Online Store > Twist Drill Bits > Diamond Coated Twist Drill Bits >20 pcs 1MM to 2.5MM diamond co...
20 pcs 1MM to 2.5MM diamond coated twist drill bits
20 pcs 1MM to 2.5MM diamond coated twist drill bits

Assorted 20 pieces of 1mm to 2.5mm diamond coated twist drill bits.

Please check the sizes as below. 5 pieces for each size, in total 20 pieces.

WHOLE working length is diamond coated, more long-lasting.

Suitable for glass, marble, tile or rock.

Please add some water when drilling a hole.

1mm twist bit, 0.75mm shank, 10mm working length, 30mm total length. 

1.5mm twist bit, 1.2mm shank, 19mm working length, 38mm total length. 

2mm twist bit, 1.7mm shank, 19mm working length, 42mm total length.

2.5mm twist bit, 2.2mm shank, 26mm working length, 55mm total length.


Regular Air Mail from Hong Kong to Worldwide is US$2.00 and takes 7-10 days for delivery.

We will ship your order within 24 business hours after payment has been received and cleared. 

We are pleased to combine shipping on multiple orders. If you have purchased three to five items at a time, you will receive a 20% discount on shipping cost. Six items or more at a time, you will receive a 25% discount on shipping cost.

Thank you for looking.

Price :
$ 10.50
Shipping :
$ 2.00
Quantity :