Home FabricatingMachiningDrill BitsTwist Drill BitsReduced Shank Drill Bits
Harfington 15/16" Drill Bit 1/2" Reduced Shank 3-Flat M35 5% Cobalt HSS Alumina
/

15/16" Drill Bit 1/2" Reduced Shank 3-Flat M35 5% Cobalt HSS Alumina

ID:
£15.00 Regular price
/
Wholesale Price
20%OFF
Order $5000+
  • 20%OFF
    Order $5000+
  • 15%OFF
    Order $2000+
  • 10%OFF
    Order $800+
  • 7%OFF
    Order $500+
  • 5%OFF
    Order $200+
About this item
  • PACKING LIST: drill bits in 15/16" (23.813mm) cutting diameter, 1/2" (12.7mm) shank diameter, 80mm/3.15 inch flute length, 152.4mm/6 inch overall length, 135° split point.
  • FEATURE: M35 Cobalt Drill Bits with Titanium Aluminum Nitride (TiAlN) Coating, Engineered with 5% cobalt and a professional-grade TiAlN coating, our high-speed steel drill bits offer exceptional oxidation resistance while dramatically enhancing hardness and durability for superior performance in demanding applications.
  • APPLICATION: The high cobalt content significantly enhances cutting stability under elevated temperatures and reduces the risk of edge chipping, making these bits particularly suited for high-speed drilling and cutting operations. Perfect for stainless steel, carbon steel, iron, aluminum, copper, plastics, and wood, for professional machining.
  • INSTRUCTION: Ensure the drill bit axis is perpendicular to the workpiece surface to prevent lateral force and breakage. Use appropriate rotational speed: Use lower speeds when machining materials like stainless steel. As a general rule, harder materials require slower speeds. Maintain steady and moderate feed pressure.
  • NOTE: It is strongly recommended to use cutting fluid (e.g., emulsion, oil-based coolant) to effectively reduce temperature, minimize wear, extend drill bit life, and improve hole wall quality. If coolant is unavailable, adopt an intermittent drilling method by frequently retracting the drill to clear chips and dissipate heat. Ensure the drill bit is securely clamped in the chuck or tool holder to prevent slipping and vibration.
  • In stock, ready to ship
Cart
Cart
About this item
  • PACKING LIST: drill bits in 15/16" (23.813mm) cutting diameter, 1/2" (12.7mm) shank diameter, 80mm/3.15 inch flute length, 152.4mm/6 inch overall length, 135° split point.
  • FEATURE: M35 Cobalt Drill Bits with Titanium Aluminum Nitride (TiAlN) Coating, Engineered with 5% cobalt and a professional-grade TiAlN coating, our high-speed steel drill bits offer exceptional oxidation resistance while dramatically enhancing hardness and durability for superior performance in demanding applications.
  • APPLICATION: The high cobalt content significantly enhances cutting stability under elevated temperatures and reduces the risk of edge chipping, making these bits particularly suited for high-speed drilling and cutting operations. Perfect for stainless steel, carbon steel, iron, aluminum, copper, plastics, and wood, for professional machining.
  • INSTRUCTION: Ensure the drill bit axis is perpendicular to the workpiece surface to prevent lateral force and breakage. Use appropriate rotational speed: Use lower speeds when machining materials like stainless steel. As a general rule, harder materials require slower speeds. Maintain steady and moderate feed pressure.
  • NOTE: It is strongly recommended to use cutting fluid (e.g., emulsion, oil-based coolant) to effectively reduce temperature, minimize wear, extend drill bit life, and improve hole wall quality. If coolant is unavailable, adopt an intermittent drilling method by frequently retracting the drill to clear chips and dissipate heat. Ensure the drill bit is securely clamped in the chuck or tool holder to prevent slipping and vibration.
Specification

Specification

Inquiry submitted successfully
We will reply within 24 hours during work time. If you haven't received the reply by then, please check your spam. Thank you!
Payments will be processed via the website or Stripe payment link. Please note that domain contact emails other than @harfington.com should not be trusted.
Product Description:
√FEATURE:
M35 drill bit is a cobalt-containing high-speed steel (5% cobalt), offering excellent heat resistance and wear resistance. It is well-suited for machining high-hardness materials such as stainless steel and alloy steel. The cobalt content enhances cutting stability at high temperatures, reducing the risk of edge chipping—making it particularly suitable for high-speed or interrupted cutting conditions.
Shank (4241 High-Speed Steel)
4241 is a standard high-speed steel with lower hardness but better toughness and bending strength.  Its low cost makes it suitable for non-cutting structural support.  This design reduces overall manufacturing costs while ensuring sufficient torsional strength for secure clamping, preventing breakage.
Cobalt Drill bit with Titanium Aluminum Nitride (TiAlN) Coating — Engineered with 5% cobalt and a professional-grade TiAlN coating, our drill bits offer exceptional oxidation resistance while dramatically enhancing hardness and durability for superior performance in demanding applications.
The 135-degree split point drill provides excellent processing stability and is well-suited for harder materials. It effectively reduces the risk of cutting-edge chipping, thereby improving drilling efficiency and hole quality.

√APPLICATION:
The 5% cobalt high-speed steel drill bits are specifically designed for cutting hard metals, such as steel, alloy cast iron, stainless steel, iron, copper, aluminum alloy, and cast iron. They are also effective in plastics and wood.

√PACKING LIST:
-Cutting Edge Diameter: 15/16" (23.813mm)
-Shank Diameter: 1/2" (12.7mm);
-Flute Length: 80mm/3.15 inch
-Total Length: 152.4mm/6 inch
-Package Content: 1 x Cobal Drill Bit
Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
£15.00 Regular price
/
Wholesale Price
20%OFF
Order $5000+
  • 20%OFF
    Order $5000+
  • 15%OFF
    Order $2000+
  • 10%OFF
    Order $800+
  • 7%OFF
    Order $500+
  • 5%OFF
    Order $200+
  • In stock, ready to ship
Cart
Cart
Free Shipping over $20

Product Variants

Products Title ID Price Qty
Products Title ID Price Qty
Qty: {[total.qty]} Item(s)
Total Price: {[handleCurrency(total.price*100)]}
View more

Description

Description

√FEATURE:
M35 drill bit is a cobalt-containing high-speed steel (5% cobalt), offering excellent heat resistance and wear resistance. It is well-suited for machining high-hardness materials such as stainless steel and alloy steel. The cobalt content enhances cutting stability at high temperatures, reducing the risk of edge chipping—making it particularly suitable for high-speed or interrupted cutting conditions.
Shank (4241 High-Speed Steel)
4241 is a standard high-speed steel with lower hardness but better toughness and bending strength.  Its low cost makes it suitable for non-cutting structural support.  This design reduces overall manufacturing costs while ensuring sufficient torsional strength for secure clamping, preventing breakage.
Cobalt Drill bit with Titanium Aluminum Nitride (TiAlN) Coating — Engineered with 5% cobalt and a professional-grade TiAlN coating, our drill bits offer exceptional oxidation resistance while dramatically enhancing hardness and durability for superior performance in demanding applications.
The 135-degree split point drill provides excellent processing stability and is well-suited for harder materials. It effectively reduces the risk of cutting-edge chipping, thereby improving drilling efficiency and hole quality.

√APPLICATION:
The 5% cobalt high-speed steel drill bits are specifically designed for cutting hard metals, such as steel, alloy cast iron, stainless steel, iron, copper, aluminum alloy, and cast iron. They are also effective in plastics and wood.

√PACKING LIST:
-Cutting Edge Diameter: 15/16" (23.813mm)
-Shank Diameter: 1/2" (12.7mm);
-Flute Length: 80mm/3.15 inch
-Total Length: 152.4mm/6 inch
-Package Content: 1 x Cobal Drill Bit
Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
{['Free Shipping to the US over $20'.replace('US', currentShipping.abbr || 'GB').replace('$20', currentShipping.price || 'US$20')]}
{['Estimated shipping time will be within 6-14 days'.replace('6-14', currentShipping.days || '6-15')]}
Shipping Method

Ship to

Total Delivery Time = Processing Time + Shipping Time
30 Day Free Return
Wholesale Inquiry
* Product Name
* Quantity(Each)
* Email Address
Customer Name
Expected Arrival Time
Customer Note
0/990
If you want to consult the bulk order, you can submit a inquiry or contact us .

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)