Brand

Rating

Price

Special Offers

Material

Shank Diameter

Number of Flutes

Combined Drill & Countersinks - Free UK Delivery Over £25 - Buy Online | Zoro

HSS-E 90° straight shank single hole countersinks feature a hardy cobalt steel construction, ideal for deburring and chamfering. 

Features and Benefits
• HSS-E cobalt steel construction for increased toughness
• Suitable for deburring and chamfering applications
• Available in a range of metric measurements

Typical Applications
• Deburring
• Chamfering

Standards 
• Manufactured to BS 328 : Part 5:1983

Manufactured from HSS-E cobalt steel with 3 flutes for effective cutting and stock removal, suitable for deburring and chamfering of most metals and plastics. 

Features and Benefits
• Manufactured from HSS-E cobalt steel for increased toughness
• 3 flutes for increased cutting performance
• 90° Inclusive angle for effective countersinking
• Suitable for deburring and chamfering

Typical Applications
• Countersinking
• Deburring
• Chamfering

Standards
• Manufactured to BS 328: Part 5:1983

A­ chatter-free cutter giving an excellent burr-free finish. Capable of deburring and countersinking in one stroke with no ‘back-off’ of tool. 
Also free countersinking of aluminium with no secondary bulge. For special applications and exotic materials, a choice of hard coatings is available.

For the production of high precision concentrically centered countersinks in most metals where pilot holes have been pre-filled. 

Features and Benefits
• HSS-Co (5%) construction for increased rigidity and tool strength
• 3/16" shank diameter for stability
• 3 flutes for efficient chip removal

Typical Applications
• Countersinking
• Pilot holes

3 Flute - Straight Shank
Manufactured from M35 HSS and used for the deburring and chamfering of most metals and plastics.  Inclusive angle 82°. Manufactured to manufacturers standard

Suitable for deburring and chamfering most metals and plastics. Manufactured to BS328:Part 5:1983. 90° inclusive angle.

For the production of high precision concentrically centred countersinks in most metals where pilot holes have been pre-drilled. Shank diameter: 3/16"

Inclined Angles for Countersunk Socket Head Screws
Thread Series: Metric. Standard: BS EN ISO 10642. Thread Size: up to M20. Countersink Angle: 90°.
Thread Series: Metric. Standard: BS EN ISO 10642. Thread Size: over M20. Countersink Angle: 60°.
Thread Series: UNC/F. Standard: ANSI B 18.3. Thread Size: No.0 to 1". Countersink Angle: 82°.
Thread Series: BSW/F. Standard: BS 2470. Thread Size: 1/8" to 1". Countersink Angle: 90°.
Thread Series: BA. Standard: BS 2470. Thread Size: 8BA to 0BA. Countersink Angle: 90°.

Rose Pattern
Inclusive angle 90°. Overall length: 2in

A quality range of single flute countersinking bits available in nine individual sizes and as a five piece set for use in the deburring and chamfering of most metals and plastics. Manufactured from high speed steel for durability and performance. Inclusive angle 90°.

General purpose chamfering/deburring and countersinking tool. bright finish, 3 flute, ground all over. Made to DIN 335. 

5 Piece Set Contents: 6.30, 8.30, 13.40, 15.00 and 19.00mm.

5-Pce 90DEG HSS-Cobalt S/S Countersink Set

5 Piece Set 
High Performance Multi Flute
Manufactured from HSS-E cobalt for deburring and chamfering. Straight shank, ground flute 60° angle. Manufactured to BS328 : Part 5 : 1983. 
Sizes: 6, 8, 10, 12.5 and 16mm.

6-16MM 60DEG HSS-Cobalt S/S Countersink Set

6 Piece Set 
High Performance Multi Flute
Manufactured from HSS-E cobalt for deburring and chamfering. Straight shank, ground flute 90° angle. Manufactured to BS328 : Part 5 : 1983. Inclusive angle 90°. 
Sizes: 6, 8, 10, 12.5, 16 and 20mm.

6-20MM 90DEG HSS-Cobalt S/S Countersink Set TiN

Set of 6 sizes: 8mm, 10mm, 12.5mm, 16mm, 20mm & 25mm. Supplied in wooden box.

8-25MM 90DEG HSS-Cobalt S/S Countersink Set

Manufactured from HSS-E cobalt for deburring and chamfering.
Straight shank. Manufactured to BS328 : Part 5 : 1983. Inclusive angle 90°.

5-10MMX90DEG Single Hole Countersink

90° Heavy Duty
Manufactured from HSS-E cobalt steel for deburring and chamfering
of most metals and plastics. Manufactured to BS328 : Part 5 : 1983.

25MM 90DEG HSS-Cobalt 3FLS/S Countersink

A­ chatter-free cutter giving an excellent burr-free finish. Capable of deburring and countersinking in one stroke with no ‘back-off’ of tool. 
Also free countersinking of aluminium with no secondary bulge. For special applications and exotic materials, a choice of hard coatings is available.

25.00MM 60DEG Countersink

For the production of high precision concentrically centred countersinks in most metals where pilot holes have been pre-drilled. Shank diameter: 3/16"

Inclined Angles for Countersunk Socket Head Screws
Thread Series: Metric. Standard: BS EN ISO 10642. Thread Size: up to M20. Countersink Angle: 90°.
Thread Series: Metric. Standard: BS EN ISO 10642. Thread Size: over M20. Countersink Angle: 60°.
Thread Series: UNC/F. Standard: ANSI B 18.3. Thread Size: No.0 to 1". Countersink Angle: 82°.
Thread Series: BSW/F. Standard: BS 2470. Thread Size: 1/8" to 1". Countersink Angle: 90°.
Thread Series: BA. Standard: BS 2470. Thread Size: 8BA to 0BA. Countersink Angle: 90°.

3/16"X3/8" 100DEG HSS-Cobalt 3FL Piloted Countersink

16.50MM 100DEG Countersink

3 Flute - Straight Shank
Manufactured from M35 HSS and used for the deburring and chamfering of most metals and plastics. Manufactured to BS 328 : Part 5 : 1983. Inclusive angle 82°.

12.5MM 82DEG HSS-Cobalt S/S Countersink

31.5MM 90DEG HSS-Cobalt 3 Fl T/S Countersink

1/8"X1/4" 120DEG HSS-Cobalt 3FL S/S Piloted Countersink

Heavy Duty
Inclusive angle 90°. Overall length: 40mm.

1/2"X90DEG Multi Flute H/D S/S Countersink

Set of 6 sizes: 2-5mm, 5-10mm, 10-15mm, 15-20mm, 20-25mm & 25-30mm. Supplied in wooden box.

2-30MM 90DEG HSS-Cobalt S/S Countersink Set

5 Piece Set 
High Performance Multi Flute
Manufactured from HSS-E cobalt for deburring and chamfering. Straight shank, ground flute 100° angle. Manufactured to BS328 : Part 5 : 1983. Inclusive angle 100°. 
Sizes: 6, 8, 10, 12.5 and 16mm.

6-16MM 100DEG HSS-Cobalt S/S Countersink Set

3/16"X90DEG HSS Single Flute Countersink

The 5 piece set contains HSS 90 degree Single Flute Countersinks in the following sizes: 1/4" (6mm), 3/8" (10mm), 1/2" (12mm), 3/4" (20mm) and 1" (25mm).

5-Pce 90DEG HSS Single Flute Countersink Set

112120 1/2"x100 Degree Plated Countersink 60 Grit

112130 5/8"x100 Degree Plated Countersink 60 Grit

112133 5/8"x100 Degree Brazed Countersink 60 Grit

ProductPage-Title-Mobile

Browse our original Sherwood products in Combined Drill & Countersinks

We suggest upgrading to Chrome