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Spiral drills (S-HM)

Special drills of finest-grained hard metal, specially suitable for jewellery-grade steel, platinum and titanium. These twist drills have two cutting edges and two flutes and and have a substantially longer service life than traditional tool-steel or HSS twist drills in the above stated jewelry materials.

Twist drill Fig. 203 "S-HM"
Material: Finest grain carbide
Execution: 2 grooves
Range of app.: steel, platinum, titanium, hard metal alloys, gold, silver
Shank: 2,35 mm dia.
Rec. speed: 5.000 - 9.000 r.p.m. (freehand drilling)
Rec. speed: 8.000 - 14.000 r.p.m. (upright drilling)
Advantage: durable
  • singly
    nameshapehead Øshaft Øunititem No.
    twist drill203 S-HM0.70 mm2.35 mm1 piece568537
    twist drill203 S-HM0.80 mm2.35 mm1 piece568538
    twist drill203 S-HM0.90 mm2.35 mm1 piece568539
    twist drill203 S-HM1.00 mm2.35 mm1 piece568540
    twist drill203 S-HM1.10 mm2.35 mm1 piece568541
    twist drill203 S-HM1.20 mm2.35 mm1 piece568542
    twist drill203 S-HM1.30 mm2.35 mm1 piece568543
    twist drill203 S-HM1.40 mm2.35 mm1 piece568544
    twist drill203 S-HM1.50 mm2.35 mm1 piece568545
    twist drill203 S-HM1.60 mm2.35 mm1 piece568546
  • Assortment
    nameversionshapehead Øcontentsitem No.
    twist drillAssortment203 S-HM0.70-1.20 mm6 pieces568530

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